My modpack crashes when starting up help please

[ScroopyNooper]

My modpack keeps crashing whenever I start it up. Normally I can figure these out, but I am completely lost with this one. Someone please help me ASAP.

 

---- Minecraft Crash Report ----
// I just don't know what went wrong 

Time: 7/30/17 9:22 PM
Description: Exception in server tick loop

cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen
    at cpw.mods.fml.common.LoadController.transition(LoadController.java:163)
    at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:559)
    at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:88)
    at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:314)
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:117)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen
    at adubbz.lockdown.Lockdown.preInit(Lockdown.java:56)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:532)
    at sun.reflect.GeneratedMethodAccessor3.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
    at com.google.common.eventbus.EventBus.post(EventBus.java:275)
    at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212)
    at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
    at com.google.common.eventbus.EventBus.post(EventBus.java:275)
    at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119)
    at cpw.mods.fml.common.Loader.preinitializeMods(Loader.java:556)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.gui.GuiScreen
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:101)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 32 more

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
    Minecraft Version: 1.7.10
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_111, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 672659448 bytes (641 MB) / 1073741824 bytes (1024 MB) up to 3221225472 bytes (3072 MB)
    JVM Flags: 8 total; -Xmx3G -Xms1G -XX:+UseG1GC -XX:+UseStringDeduplication -XX:+UseCompressedOops -XX:+OptimizeStringConcat -XX:+UseFastAccessorMethods -XX:+AggressiveOpts
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 83 mods loaded, 71 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCH    mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) 
    UCH    FML{7.10.99.99} [Forge Mod Loader] (Forge.jar) 
    UCH    Forge{10.13.4.1614} [Minecraft Forge] (Forge.jar) 
    UCH    appliedenergistics2-core{rv3-beta-6} [Applied Energistics 2 Core] (minecraft.jar) 
    UCH    CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar) 
    UCH    ivtoolkit{1.2.1} [IvToolkit] (minecraft.jar) 
    UCH    OpenComputers|Core{1.6.2.12} [OpenComputers (Core)] (minecraft.jar) 
    UCH    PlayerAPI{1.4} [Player API] (minecraft.jar) 
    UCH    RenderPlayerAPI{1.4} [Render Player API] (minecraft.jar) 
    UCH    SmartCore{1.0.3} [Smart Core] (minecraft.jar) 
    UCH    voltzenginepreloader{0.0.1} [Voltz Engine Preloader] (minecraft.jar) 
    UCH    <CoFH ASM>{000} [CoFH ASM] (minecraft.jar) 
    UCH    psychedelicraftcore{1.4} [Psychedelicraft Core] (minecraft.jar) 
    UCH    CustomOreGen{1.2.26} [Custom Ore Generation] (CustomOreGen-1.7.10-1.2.26.jar) 
    UCH    Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar) 
    UCH    HardLib{15.26.1a} [HardLib] (1.7.10-HardLib-15.26.1a.jar) 
    UCH    HarderUnderground{15.26.2a} [HarderUnderground] (1.7.10-HarderUnderground-15.26.2a.jar) 
    UCH    securitycraft{v1.8.2.3-hotfix} [SecurityCraft] ([1.7.10] SecurityCraft v1.8.2.3-hotfix.jar) 
    UCH    bspkrsCore{6.15} [bspkrsCore] ([1.7.10]bspkrsCore-universal-6.15.jar) 
    UCH    Treecapitator{1.7.10} [Treecapitator] ([1.7.10]Treecapitator-universal-2.0.4.jar) 
    UCH    appliedenergistics2{rv3-beta-6} [Applied Energistics 2] (appliedenergistics2-rv3-beta-6.jar) 
    UCH    CoFHCore{1.7.10R3.1.4} [CoFH Core] (CoFHCore-[1.7.10]3.1.4-329.jar) 
    UCH    MineFactoryReloaded{1.7.10R2.8.2B1} [MineFactory Reloaded] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    IC2{2.2.827-experimental} [IndustrialCraft 2] (industrialcraft-2-2.2.827-experimental.jar) 
    UCH    Railcraft{9.12.2.0} [Railcraft] (Railcraft_1.7.10-9.12.2.0.jar) 
    UCH    Artifice{1.7.10R1.1.4} [Artifice] (Artifice-1.7.10-1.1.5R-399.jar) 
    UCH    ThermalFoundation{1.7.10R1.2.6} [Thermal Foundation] (ThermalFoundation-[1.7.10]1.2.6-118.jar) 
    UCH    ThermalExpansion{1.7.10R4.1.5} [Thermal Expansion] (ThermalExpansion-[1.7.10]4.1.5-248.jar) 
    UCH    BigReactors{0.4.3A} [Big Reactors] (BigReactors-0.4.3A.jar) 
    UCH    bigtrees{0.2} [The BigTrees Mod] (bigtrees-0.2-1.7.10.jar) 
    UCH    BiomeTweaker{2.0.182} [BiomeTweaker] (BiomeTweaker-1.7.10-2.0.182.jar) 
    UCH    climatecontrol{0.8.1} [Climate Control] (ClimateControl-0.8.2.jar) 
    UCH    ComputerCraft{1.75} [ComputerCraft] (ComputerCraft1.75.jar) 
    UCE    CustomMainMenu{1.9.2} [Custom Main Menu] (CustomMainMenu-MC1.7.10-1.9.2.jar) 
    UCH    lootablebodies{1.3.7} [DrCyano's Lootable Bodies] (CyanosLootableBodies-1.7.10-backport_1.3.7.jar) 
    UCH    ForgeMultipart{1.2.0.347} [Forge Multipart] (ForgeMultipart-1.7.10-1.2.0.347-universal.jar) 
    UCH    Mekanism{9.1.0} [Mekanism] (Mekanism-1.7.10-9.1.0.281.jar) 
    UCH    DefenseTech{1.0.1} [DefenseTech] (DefenseTech-1.7.10-1.0.1.46.jar) 
    UCH    ExtraUtilities{1.2.12} [Extra Utilities] (extrautilities-1.2.12.jar) 
    UCH    flansmod{4.10.0} [Flan's Mod] (Flans Mod-1.7.10-4.10.0.jar) 
    UCH    HardcoreDarkness{1.7} [Hardcore Darkness] (HardcoreDarkness-MC1.7.10-1.7.jar) 
    UCH    hidenames{1.1.7} [Hide Names] (Hide Names-1.7.10-1.1.8.jar) 
    UCH    LunatriusCore{1.1.2.21} [LunatriusCore] (LunatriusCore-1.7.10-1.1.2.21-universal.jar) 
    UCH    InGameInfoXML{2.8.1.82} [InGame Info XML] (InGameInfoXML-1.7.10-2.8.1.82-universal.jar) 
    UCE    Lockdown{2.0.0} [Lockdown] (Lockdown-1.7.2-2.0.0-universal.jar) 
    UCH    RadixCore{2.1.3} [RadixCore] (RadixCore-1.7.10-2.1.3-universal.jar) 
    UCH    MCA{1.7.10-5.2.2} [Minecraft Comes Alive] (MCA-1.7.10-5.2.2-universal.jar) 
    UCH    voltzengine{1.7.2.167} [Voltz Engine] (VoltzEngine-1.7.10-1.7.2b167.jar) 
    UCH    mffs{0.50} [Modular Forcefield System] (Mffs-1.7.10-0.0.51b144.jar) 
    UCH    minechem{5.0.5.406} [Minechem] (Minechem-1.7.10-5.0.5.406.jar) 
    UCH    MineFactoryReloaded|CompatAppliedEnergistics{1.7.10R2.8.2B1} [MFR Compat: Applied Energistics] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    MineFactoryReloaded|CompatForgeMicroblock{1.7.10R2.8.2B1} [MFR Compat: ForgeMicroblock] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    MineFactoryReloaded|CompatIC2{1.7.10R2.8.2B1} [MFR Compat: IC2] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    MineFactoryReloaded|CompatRailcraft{1.7.10R2.8.2B1} [MFR Compat: Railcraft] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    MineFactoryReloaded|CompatThermalExpansion{1.7.10R2.8.2B1} [MFR Compat: Thermal Expansion] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    MineFactoryReloaded|CompatVanilla{1.7.10R2.8.2B1} [MFR Compat: Vanilla] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UCH    numina{1.7.10} [Numina] (Numina-0.4.1.105.jar) 
    UCH    powersuits{1.7.10-0.11.1.114} [MachineMuse's Modular Powersuits] (ModularPowersuits-1.7.10-0.11.1.114.jar) 
    UCH    NetherOres{1.7.10R2.3.2B1} [Nether Ores] (NetherOres-[1.7.10]2.3.2B1-25.jar) 
    UCH    OpenComputers{1.6.2.12} [OpenComputers] (OpenComputers-MC1.7.10-1.6.2.12-universal.jar) 
    UCH    openmodularturrets{2.2.10-237} [Open Modular Turrets] (OpenModularTurrets-1.7.10-2.2.10-237.jar) 
    UCH    psychedelicraft{1.5.2} [Psychedelicraft] (Psychedelicraft-1.5.2.jar) 
    UCH    RTG{1.7.10-1.1.1.4} [Realistic Terrain Generation] (RTG-1.7.10-1.1.1.4.jar) 
    UCH    SmartMoving{15.6} [Smart Moving] (SmartMoving-1.7.10-15.6.jar) 
    UCH    SmartRender{2.1} [Smart Render] (SmartRender-1.7.10-2.1.jar) 
    UCH    ThermalDynamics{1.7.10R1.2.1} [Thermal Dynamics] (ThermalDynamics-[1.7.10]1.2.1-172.jar) 
    UCH    UndergroundBiomes{0.8.beta49} [Underground Biomes Constructs] (UndergroundBiomesConstructs-1.7.10-0.8-beta49.jar) 
    UCH    VeinMiner{0.36.0_1.7.10-28a7f13} [Vein Miner] (VeinMiner-1.7.10-0.36.0.496+28a7f13.jar) 
    UCH    VeinMinerModSupport{0.36.0_1.7.10-28a7f13} [Mod Support] (VeinMiner-1.7.10-0.36.0.496+28a7f13.jar) 
    UCH    ForgeMicroblock{1.2.0.347} [Forge Microblocks] (ForgeMultipart-1.7.10-1.2.0.347-universal.jar) 
    UCH    McMultipart{1.2.0.347} [Minecraft Multipart Plugin] (ForgeMultipart-1.7.10-1.2.0.347-universal.jar) 
    UD    BiomeTweakerCore{2.0.182} [BiomeTweaker Core] (minecraft.jar) 
    UD    MineFactoryReloaded|CompatAtum{1.7.10R2.8.2B1} [MFR Compat: Atum] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatBackTools{1.7.10R2.8.2B1} [MFR Compat: BackTools] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatBuildCraft{1.7.10R2.8.2B1} [MFR Compat: BuildCraft] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatChococraft{1.7.10R2.8.2B1} [MFR Compat: Chococraft] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatExtraBiomes{1.7.10R2.8.2B1} [MFR Compat: ExtraBiomes] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatForestry{1.7.10R2.8.2B1} [MFR Compat: Forestry] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatProjRed{1.7.10R2.8.2B1} [MFR Compat ProjectRed] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatSufficientBiomes{1.7.10R2.8.2B1} [MFR Compat: Sufficient Biomes] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatThaumcraft{1.7.10R2.8.2B1} [MFR Compat: Thaumcraft] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatTConstruct{1.7.10R2.8.2B1} [MFR Compat: Tinkers' Construct] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    UD    MineFactoryReloaded|CompatTwilightForest{1.7.10R2.8.2B1} [MFR Compat: TwilightForest] (MineFactoryReloaded-[1.7.10]2.8.2B1-201.jar) 
    AE2 Version: beta rv3-beta-6 for Forge 10.13.4.1448
    CoFHCore: -[1.7.10]3.1.4-329
    MineFactoryReloaded: -[1.7.10]2.8.2B1-201
    ThermalFoundation: -[1.7.10]1.2.6-118
    ThermalExpansion: -[1.7.10]4.1.5-248
    NetherOres: -[1.7.10]2.3.2B1-25
    ThermalDynamics: -[1.7.10]1.2.1-172
    Profiler Position: N/A (disabled)
    Is Modded: Definitely; Server brand changed to 'fml,forge'
    Type: Dedicated Server (map_server.txt)

 

[JaariAtmc]

14 hours ago, ScroopyNooper said:

My modpack keeps crashing:

Time: 7/30/17 9:22 PM
Description: Exception in server tick loop

cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: net/minecraft/client/gui/GuiScreen

    UCE    CustomMainMenu{1.9.2} [Custom Main Menu] (CustomMainMenu-MC1.7.10-1.9.2.jar) 

    UCE    Lockdown{2.0.0} [Lockdown] (Lockdown-1.7.2-2.0.0-universal.jar) 

    Is Modded: Definitely; Server brand changed to 'fml,forge'
    Type: Dedicated Server (map_server.txt)

Hey, it looks like you are trying to run it as a server. Gee, I wonder why it crashes when there's two clientside-only mods included. No clue at all why it crashes...