Forge Server Crashing

[Aldomschi]

Hi, I'm trying to host my own Forge Server and it was working fine until I added a huge Modpack. The Log is the following:

 

Modded Server>java -Xmx8G -Xms4G -jar forge-1.12.2-14.23.5.2847-universal.jar -o true
[04:12:36] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLServerTweaker
[04:12:36] [main/INFO] [LaunchWrapper]: Using primary tweak class name net.minecraftforge.fml.common.launcher.FMLServerTweaker
[04:12:36] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLServerTweaker
[04:12:36] [main/INFO] [FML]: Forge Mod Loader version 14.23.5.2847 for Minecraft 1.12.2 loading
[04:12:36] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_261, running on Windows 10:amd64:10.0, installed at C:\Program Files\Java\jre1.8.0_261
[04:12:36] [main/WARN] [FML]: The coremod FMLCorePlugin (net.minecraftforge.fml.relauncher.FMLCorePlugin) is not signed!
[04:12:37] [main/WARN] [FML]: The coremod FMLForgePlugin (net.minecraftforge.classloading.FMLForgePlugin) is not signed!
[04:12:37] [main/INFO] [FML]: Searching C:\Users\Álvaro\Desktop\Modded Server\.\mods for mods
[04:12:37] [main/INFO] [FML]: Searching C:\Users\Álvaro\Desktop\Modded Server\.\mods\1.12.2 for mods
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in AppleCore-mc1.12.2-3.2.0.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod AppleCore (squeek.applecore.AppleCore) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in astralsorcery-1.12.2-1.10.20.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod hellfirepvp.astralsorcery.core.AstralCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/INFO] [Astral Core]: [AstralCore] Initialized.
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in Bloodmoon-MC1.12.2-1.5.3.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod lumien.bloodmoon.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/INFO] [FML]: Loading tweaker codechicken.asm.internal.Tweaker from ChickenASM-1.12-1.0.2.7.jar
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in CreativeCore_v1.9.87_mc1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod com.creativemd.creativecore.core.CreativePatchingLoader does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: The coremod CreativePatchingLoader (com.creativemd.creativecore.core.CreativePatchingLoader) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in CTM-MC1.12.2-1.0.1.30.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod team.chisel.ctm.client.asm.CTMCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: The coremod CTMCorePlugin (team.chisel.ctm.client.asm.CTMCorePlugin) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in foamfix-0.10.10-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod pl.asie.foamfix.coremod.FoamFixCore does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in Forgelin-1.8.4.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod net.shadowfacts.forgelin.preloader.ForgelinPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: The coremod ForgelinPlugin (net.shadowfacts.forgelin.preloader.ForgelinPlugin) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in future-mc-0.1.13.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod FutureMC (thedarkcolour.futuremc.asm.CoreLoader) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in iceandfire-1.8.3.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod iceandfire (com.github.alexthe666.iceandfire.asm.IceAndFirePlugin) is not signed!
[04:12:37] [main/INFO] [FML]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from malisiscore-1.12.2-6.5.1.jar
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in malisisswitches-1.12.2-5.1.0.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod net.malisis.switches.asm.MalisisSwitchesPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: The coremod MalisisSwitchesPlugin (net.malisis.switches.asm.MalisisSwitchesPlugin) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in mclib-1.0.4-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod McLib core mod (mchorse.mclib.core.McLibCM) is not signed!
[04:12:37] [main/WARN] [FML]: The coremod ObfuscatePlugin (com.mrcrayfish.obfuscate.asm.ObfuscatePlugin) is not signed!
[04:12:37] [main/WARN] [FML]: The coremod lain.mods.skins.init.forge.asm.Plugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: The coremod OTGCorePlugin (com.pg85.otg.forge.asm.excluded.launch.OTGCorePlugin) is not signed!
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in ResourceLoader-MC1.12.1-1.5.3.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod lumien.resourceloader.asm.LoadingPlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/INFO] [FML]: Loading tweaker org.spongepowered.asm.launch.MixinTweaker from VanillaFix-1.0.10-99.jar
[04:12:37] [main/WARN] [FML]: Found FMLCorePluginContainsFMLMod marker in wings-1.1.5-1.12.2.jar. This is not recommended, @Mods should be in a separate jar from the coremod.
[04:12:37] [main/WARN] [FML]: The coremod wings (me.paulf.wings.server.asm.plugin.WingsLoadingPlugin) is not signed!
[04:12:37] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[04:12:37] [main/INFO] [LaunchWrapper]: Loading tweak class name codechicken.asm.internal.Tweaker
[04:12:37] [main/INFO] [LaunchWrapper]: Loading tweak class name org.spongepowered.asm.launch.MixinTweaker
[04:12:37] [main/INFO] [mixin]: SpongePowered MIXIN Subsystem Version=0.7.11 Source=file:/C:/Users/Álvaro/Desktop/Modded%20Server/./mods/malisiscore-1.12.2-6.5.1.jar Service=LaunchWrapper Env=SERVER
[04:12:37] [main/WARN] [FML]: The coremod net.malisis.core.asm.MalisisCorePlugin does not have a MCVersion annotation, it may cause issues with this version of Minecraft
[04:12:37] [main/WARN] [FML]: The coremod MalisisCorePlugin (net.malisis.core.asm.MalisisCorePlugin) is not signed!
[04:12:37] [main/INFO] [mixin]: Compatibility level set to JAVA_8
[04:12:37] [main/INFO] [VanillaFix]: Initializing VanillaFix
[04:12:37] [main/INFO] [VanillaFix]: Initializing StacktraceDeobfuscator
[04:12:37] [main/INFO] [VanillaFix]: Found MCP method mappings: methods-stable_39.csv
[04:12:37] [main/INFO] [VanillaFix]: Done initializing StacktraceDeobfuscator
[04:12:37] [main/INFO] [VanillaFix]: Initializing Bug Fix Mixins
[04:12:37] [main/INFO] [VanillaFix]: Initializing Crash Fix Mixins
[04:12:37] [main/INFO] [VanillaFix]: Initializing Profiler Improvement Mixins
[04:12:37] [main/INFO] [VanillaFix]: Initializing Texture Fix Mixins
[04:12:37] [main/INFO] [VanillaFix]: Initializing Mod Support Mixins
[04:12:37] [main/WARN] [FML]: The coremod VanillaFixLoadingPlugin (org.dimdev.vanillafix.VanillaFixLoadingPlugin) is not signed!
[04:12:37] [main/WARN] [LaunchWrapper]: Tweak class name org.spongepowered.asm.launch.MixinTweaker has already been visited -- skipping
[04:12:37] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[04:12:37] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[04:12:37] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLInjectionAndSortingTweaker
[04:12:37] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class codechicken.asm.internal.Tweaker
[04:12:38] [main/INFO] [STDOUT]: [codechicken.asm.internal.Tweaker:injectIntoClassLoader:30]: false
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class org.spongepowered.asm.launch.MixinTweaker
[04:12:38] [main/INFO] [mixin]: Initialised Mixin FML Remapper Adapter with net.minecraftforge.fml.common.asm.transformers.deobf.FMLDeobfuscatingRemapper@3ec2ecea
[04:12:38] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.FMLDeobfTweaker
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Loading patches...
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Found 0 Transformers! Trying to recover with direct references...
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Initialized! Loaded 14 class patches!
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.relauncher.CoreModManager$FMLPluginWrapper
[04:12:39] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.fml.common.launcher.TerminalTweaker
[04:12:39] [main/INFO] [LaunchWrapper]: Loading tweak class name org.spongepowered.asm.mixin.EnvironmentStateTweaker
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.fml.common.launcher.TerminalTweaker
[04:12:39] [main/INFO] [LaunchWrapper]: Calling tweak class org.spongepowered.asm.mixin.EnvironmentStateTweaker
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Transforming amu : net.minecraft.world.World with 2 patches!
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Skipping PATCHSUNBRIGHTNESSWORLDCLIENT as it can't be applied for side SERVER
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHSUNBRIGHTNESSWORLDCOMMON
[04:12:39] [main/INFO] [mixin]: A re-entrant transformer '$wrapper.lumien.bloodmoon.asm.ClassTransformer' was detected and will no longer process meta class data
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:98]: Added INTERFACE: pl/asie/foamfix/coremod/patches/IFoamFixWorldRemovable
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:135]: Added METHOD: net.minecraft.world.World.foamfix_removeUnloadedEntities
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.patches.WorldServerRemovalPatch:apply:62]: Patched updateEntities in net/minecraft/world/WorldServer func_72939_s
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.patchy.helpers.ConstructorReplacingTransformer$FFMethodVisitor:visitTypeInsn:73]: Replaced NEW for net/minecraft/util/ClassInheritanceMultiMap to pl/asie/foamfix/coremod/common/FoamyClassInheritanceMultiMap
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.patchy.helpers.ConstructorReplacingTransformer$FFMethodVisitor:visitMethodInsn:85]: Replaced INVOKESPECIAL for net/minecraft/util/ClassInheritanceMultiMap to pl/asie/foamfix/coremod/common/FoamyClassInheritanceMultiMap
[04:12:39] [main/INFO] [mixin]: A re-entrant transformer '$wrapper.pl.asie.foamfix.coremod.FoamFixTransformer' was detected and will no longer process meta class data
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Transforming pa : net.minecraft.network.NetHandlerPlayServer with 1 patches!
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHSERVEREXTENDENTITYINTERACTREACH
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.util.text.TextComponentTranslation. This may cause patch issues
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.util.math.BlockPos. This may cause patch issues
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.tileentity.CommandBlockBaseLogic. This may cause patch issues
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.item.ItemStack. This may cause patch issues
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Transforming alm : net.minecraft.enchantment.EnchantmentHelper with 1 patches!
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHMODIFYENCHANTMENTLEVELS
[04:12:39] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.Entity : vg
[04:12:39] [main/WARN] [mixin]: Error loading class: net/minecraft/server/integrated/IntegratedServer (net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@34819867 from coremod FMLCorePlugin)
[04:12:39] [main/WARN] [mixin]: @Mixin target net.minecraft.server.integrated.IntegratedServer was not found mixins.vanillafix.crashes.json:MixinIntegratedServer
[04:12:39] [main/ERROR] [mixin]: Classloader restrictions [PACKAGE_TRANSFORMER_EXCLUSION] encountered loading mixins.malisis.switches.json:MixinWorld, name: net.malisis.switches.asm.mixin.MixinWorld
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Transforming amu : net.minecraft.world.World with 2 patches!
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Skipping PATCHSUNBRIGHTNESSWORLDCLIENT as it can't be applied for side SERVER
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHSUNBRIGHTNESSWORLDCOMMON
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:98]: Added INTERFACE: pl/asie/foamfix/coremod/patches/IFoamFixWorldRemovable
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:135]: Added METHOD: net.minecraft.world.World.foamfix_removeUnloadedEntities
[04:12:39] [main/INFO] [STDOUT]: [team.chisel.ctm.client.asm.CTMTransformer:preTransform:230]: Transforming Class [net.minecraft.block.Block], Method [getExtendedState]
[04:12:39] [main/INFO] [STDOUT]: [team.chisel.ctm.client.asm.CTMTransformer:finishTransform:242]: Transforming net.minecraft.block.Block Finished.
[04:12:39] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.patches.WorldServerRemovalPatch:apply:62]: Patched updateEntities in net/minecraft/world/WorldServer func_72939_s
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.entity.EntityLivingBase. This may cause patch issues
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.entity.Entity. This may cause patch issues
[04:12:39] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.EntityLivingBase : vp
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Transforming vp : net.minecraft.entity.EntityLivingBase with 4 patches!
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHAPPLYPOTIONEFFECTEVENT
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHUPDATEELYTRA
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHENTITYLIVINGBASEWATERSLOWDOWN
[04:12:39] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHSETPLAYERATTRIBUTE
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.nbt.NBTTagList. This may cause patch issues
[04:12:39] [main/WARN] [LLibrary Core]: Failed to fetch hierarchy node for net.minecraft.entity.player.EntityPlayerMP. This may cause patch issues
[04:12:39] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.Entity : vg
[04:12:40] [main/INFO] [LaunchWrapper]: Launching wrapped minecraft {net.minecraft.server.MinecraftServer}
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraftforge.registries.GameData : net/minecraftforge/registries/GameData
[04:12:40] [main/INFO] [STDOUT]: [team.chisel.ctm.client.asm.CTMTransformer:preTransform:230]: Transforming Class [net.minecraft.block.Block], Method [getExtendedState]
[04:12:40] [main/INFO] [STDOUT]: [team.chisel.ctm.client.asm.CTMTransformer:finishTransform:242]: Transforming net.minecraft.block.Block Finished.
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.world.biome.Biome : anh
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.item.EntityItem : acl
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.item.EntityXPOrb : vm
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.state.BlockStateContainer.createState
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.properties.PropertyEnum.equals
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.properties.PropertyEnum.hashCode
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.block.properties.PropertyEnum.foamfix_hashCode
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.block.properties.PropertyEnum.foamfix_hashCode_calced
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.properties.PropertyInteger.hashCode
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.block.properties.PropertyInteger.foamfix_hashCode
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.block.properties.PropertyInteger.foamfix_hashCode_calced
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.properties.PropertyBool.equals
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.properties.PropertyBool.hashCode
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Transforming aip : net.minecraft.item.ItemStack with 2 patches!
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Skipping PATCHMODIFYENCHANTMENTLEVELSTOOLTIP as it can't be applied for side SERVER
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Skipping PATCHMODIFYENCHANTMENTLEVELSTOOLTIPEVENT as it can't be applied for side SERVER
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.util.math.BlockPos$PooledMutableBlockPos : et$b
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.item.EntityFallingBlock : ack
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.tileentity.TileEntity.func_190559_a
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.block.BlockBed.func_189540_a
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.item.EntityTNTPrimed : acm
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.patchy.helpers.ConstructorReplacingTransformer$FFMethodVisitor:visitTypeInsn:73]: Replaced NEW for net/minecraft/tileentity/TileEntityHopper to pl/asie/foamfix/common/TileEntityFasterHopper
[04:12:40] [main/INFO] [STDOUT]: [pl.asie.patchy.helpers.ConstructorReplacingTransformer$FFMethodVisitor:visitMethodInsn:85]: Replaced INVOKESPECIAL for net/minecraft/tileentity/TileEntityHopper to pl/asie/foamfix/common/TileEntityFasterHopper
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Transforming aip : net.minecraft.item.ItemStack with 2 patches!
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Skipping PATCHMODIFYENCHANTMENTLEVELSTOOLTIP as it can't be applied for side SERVER
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Skipping PATCHMODIFYENCHANTMENTLEVELSTOOLTIPEVENT as it can't be applied for side SERVER
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.projectile.EntityArrow : aeh
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.item.EntityMinecart : afe
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.projectile.EntityThrowable : aev
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.item.EntityBoat : afd
[04:12:40] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.EntityLivingBase : vp
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Transforming vp : net.minecraft.entity.EntityLivingBase with 4 patches!
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHAPPLYPOTIONEFFECTEVENT
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHUPDATEELYTRA
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHENTITYLIVINGBASEWATERSLOWDOWN
[04:12:40] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHSETPLAYERATTRIBUTE
[04:12:41] [main/INFO] [Astral Core]: [AstralTransformer] Transforming wg : net.minecraft.entity.ai.attributes.AbstractAttributeMap with 1 patches!
[04:12:41] [main/INFO] [Astral Core]: [AstralTransformer] Applied patch PATCHADDPLAYERATTRIBUTE
[04:12:41] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.projectile.EntityShulkerBullet : aer
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:98]: Added INTERFACE: pl/asie/foamfix/api/IFoamFixMobSpawnerLogic
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:111]: Spliced in METHOD: net.minecraft.tileentity.MobSpawnerBaseLogic.func_98279_f
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.tileentity.MobSpawnerBaseLogic.foamfix_activatedCache
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.tileentity.MobSpawnerBaseLogic.foamfix_activatedCachePESize
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.tileentity.MobSpawnerBaseLogic.foamfix_activatedCacheTime
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.tileentity.MobSpawnerBaseLogic.foamfix_forcedCache
[04:12:41] [main/INFO] [STDOUT]: [pl.asie.foamfix.coremod.FoamFixTransformer:spliceClasses:158]: Added FIELD: net.minecraft.tileentity.MobSpawnerBaseLogic.foamfix_forcedCacheTime
[04:12:41] [main/INFO] [STDOUT]: [com.pg85.otg.forge.asm.excluded.OTGClassTransformer:transform:77]: OTG-Core transforming: net.minecraft.entity.projectile.EntityLlamaSpit : aeo
[04:12:42] [Server thread/INFO] [minecraft/DedicatedServer]: Starting minecraft server version 1.12.2
[04:12:42] [Server thread/INFO] [FML]: MinecraftForge v14.23.5.2847 Initialized
[04:12:42] [Server thread/INFO] [FML]: Starts to replace vanilla recipe ingredients with ore ingredients.
[04:12:42] [Server thread/INFO] [FML]: Invalid recipe found with multiple oredict ingredients in the same ingredient...
[04:12:42] [Server thread/INFO] [FML]: Replaced 1227 ore ingredients
[04:12:42] [Server thread/ERROR] [minecraft/MinecraftServer]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: net/minecraft/client/gui/toasts/IToast
        at java.lang.Class.forName0(Native Method) ~[?:1.8.0_261]
        at java.lang.Class.forName(Unknown Source) ~[?:1.8.0_261]
        at net.minecraftforge.fml.common.Loader.identifyMods(Loader.java:379) ~[Loader.class:?]
        at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:568) ~[Loader.class:?]
        at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:98) ~[FMLServerHandler.class:?]
        at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:333) ~[FMLCommonHandler.class:?]
        at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:125) ~[nz.class:?]
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:486) [MinecraftServer.class:?]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_261]
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.toasts.IToast
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261]
        ... 9 more
Caused by: java.lang.NullPointerException
        at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ~[launchwrapper-1.12.jar:?]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261]
        at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_261]
        ... 9 more
[04:12:42] [Server thread/ERROR] [minecraft/MinecraftServer]: This crash report has been saved to: C:\Users\Álvaro\Desktop\Modded Server\.\crash-reports\crash-2020-08-22_04.12.42-server.txt
[04:12:42] [Server thread/INFO] [minecraft/MinecraftServer]: Stopping server
[04:12:42] [Server thread/INFO] [minecraft/MinecraftServer]: Saving worlds
[04:12:42] [Server thread/INFO] [FML]: The state engine was in incorrect state CONSTRUCTING and forced into state SERVER_STOPPED. Errors may have been discarded.
[04:12:42] [Server Shutdown Thread/INFO] [minecraft/MinecraftServer]: Stopping server
←[←[0m

 

I hope you can help me because I don't really know which Mod is causing this (if that's the problem)

Thank you

[JaariAtmc]

You've got one or more clientside only mods, but those can't be found just reading the log. Provide a list of mods you have included in the modpack.

[TerdyTheTerd]

Also for future reference, please refrain from posting log files directly into your post. Please use something like pastebin to link to for large log files, they can and will quickly make a thread a scrolling nightmare.