Having trouble with game crashing

[Foyiwae]

Hello,

So I tried playing Attack of the B-Team after not playing for a while. The game launches fine, but when I try to load up a server the game crashes. I tried reading on here before posting, but I have no idea what I am doing so I have no idea where to start looking.

Thank you for any help you can provide.

The crash report is here:

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

Time: 25/06/17 14:50
Description: Ticking screen

java.lang.ClassCastException: net.minecraft.client.gui.GuiDisconnected cannot be cast to net.minecraft.client.multiplayer.GuiConnecting
    at cpw.mods.fml.client.FMLClientHandler.disconnectIDMismatch(FMLClientHandler.java:598)
    at cpw.mods.fml.common.FMLCommonHandler.disconnectIDMismatch(FMLCommonHandler.java:463)
    at cpw.mods.fml.common.network.ModIdMapPacket.execute(ModIdMapPacket.java:101)
    at cpw.mods.fml.common.network.FMLNetworkHandler.handleFMLPacket(FMLNetworkHandler.java:116)
    at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:81)
    at net.minecraft.client.multiplayer.NetClientHandler.func_72501_a(NetClientHandler.java:1651)
    at net.minecraft.network.packet.Packet250CustomPayload.func_73279_a(SourceFile:61)
    at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:462)
    at net.minecraft.client.multiplayer.NetClientHandler.func_72551_d(NetClientHandler.java:281)
    at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(GuiConnecting.java:51)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1580)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:910)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:838)
    at net.minecraft.client.main.Main.main(SourceFile:101)
    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 net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

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

-- Head --
Stacktrace:
    at cpw.mods.fml.client.FMLClientHandler.disconnectIDMismatch(FMLClientHandler.java:598)
    at cpw.mods.fml.common.FMLCommonHandler.disconnectIDMismatch(FMLCommonHandler.java:463)
    at cpw.mods.fml.common.network.ModIdMapPacket.execute(ModIdMapPacket.java:101)
    at cpw.mods.fml.common.network.FMLNetworkHandler.handleFMLPacket(FMLNetworkHandler.java:116)
    at cpw.mods.fml.common.network.FMLNetworkHandler.handlePacket250Packet(FMLNetworkHandler.java:81)
    at net.minecraft.client.multiplayer.NetClientHandler.func_72501_a(NetClientHandler.java:1651)
    at net.minecraft.network.packet.Packet250CustomPayload.func_73279_a(SourceFile:61)
    at net.minecraft.network.TcpConnection.func_74428_b(TcpConnection.java:462)
    at net.minecraft.client.multiplayer.NetClientHandler.func_72551_d(NetClientHandler.java:281)
    at net.minecraft.client.multiplayer.GuiConnecting.func_73876_c(GuiConnecting.java:51)

-- Affected screen --
Details:
    Screen name: net.minecraft.client.gui.GuiDisconnected
Stacktrace:
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1580)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:910)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:838)
    at net.minecraft.client.main.Main.main(SourceFile:101)
    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 net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

-- System Details --
Details:
    Minecraft Version: 1.6.4
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_131, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 4983447600 bytes (4752 MB) / 5368709120 bytes (5120 MB) up to 5368709120 bytes (5120 MB)
    JVM Flags: 5 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xms5120m -Xmx5120m -XX:+UseG1GC -XX:MaxGCPauseMillis=4
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    Suspicious classes: FML and Forge are installed
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP v8.11 FML v6.4.49.965 Minecraft Forge 9.11.1.965 119 mods loaded, 119 mods active
    mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    FML{6.4.49.965} [Forge Mod Loader] (modpack.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Forge{9.11.1.965} [Minecraft Forge] (modpack.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CodeChickenCore{0.9.0.9} [CodeChicken Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Micdoodlecore{} [Micdoodle8 Core] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    NotEnoughItems{1.6.1.9} [Not Enough Items] (notenoughitems 1.6.1.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    OpenEye{0.6} [OpenEye] (openeye-0.6-1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    PowerCrystalsCore{1.1.8} [PowerCrystals Core] (powercrystalscore-1.1.8-9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    TConstruct-Preloader{0.0.1} [Tinkers Corestruct] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    OpenModsCore{@VERSION@} [OpenModsCore] (minecraft.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    advancedgenetics{v1.4.3} [Advanced Genetics] (advgen.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArchimedesShipsMod{1.6.4 v1.4.5} [Archimedes' Ships] (archimedesships.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Artifice{1.6.4R1.1.3} [Artifice] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|EE3{1.6.4R1.1.3} [Artifice Compat: EE3] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|Forestry{1.6.4R1.1.3} [Artifice Compat: Forestry] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|Vanilla{1.6.4R1.1.3} [Artifice Compat: Vanilla] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded{1.6.4R2.7.9} [MineFactory Reloaded] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|MFR{1.6.4R1.1.3} [Artifice Compat: MFR] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|Buildcraft{1.6.4R1.1.3} [Artifice Compat: Buildcraft] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|ForgeMicroblock{1.6.4R1.1.3} [Artifice Compat: ForgeMicroblock] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ArtificeCompat|Thaumcraft{1.6.4R1.1.3} [Artifice Compat: Thaumcraft] (artifice-1.1.3-243.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    AutoBlocks{1.0.0} [AutoBlocks] (autoblocks 1.0.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Autoutils{1.0.1} [Autoutils] (autoutils-1.6.4-1.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    betterstorage{0.8.0.47} [BetterStorage] (betterstorage-1.6.4-0.8.0.47.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    BiblioCraft{1.5.5} [BiblioCraft] (bibliocraft[v1.5.5].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Natura{2.1.14} [Natura] (natura_mc1.6.X_2.1.14.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    BiomesOPlenty{1.2.1} [Biomes O' Plenty] (biomesoplenty-universal-1.6.4-1.2.1.434.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    BiblioWoodsBoP{1.3} [BiblioWoods Biomes O'Plenty Edition] (bibliowoods[biomesoplenty][v1.3].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    BiblioWoodsNatura{1.1} [BiblioWoods Natura Edition] (bibliowoods[natura][v1.1].zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CarpentersBlocks{3.2.5} [Carpenter's Blocks] (carpentersblocks v3.2.6 - MC 1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CoFHCore{2.0.0.5} [CoFH Core] (cofhcore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CoFHLoot{2.0.0.5} [CoFH Loot] (cofhcore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CoFHMasquerade{2.0.0.5} [CoFH Masquerade] (cofhcore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CoFHSocial{2.0.0.5} [CoFH Social] (cofhcore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CoFHWorld{2.0.0.5} [CoFH World] (cofhcore-2.0.0.5.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ConfigMod{v1.0} [Extended Mod Config] (configmod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    CoroAI{v1.0} [CoroAI] (coroutil for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    darwin{0.2.3} [Darwin] (darwin_0.2.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    DragonMounts{r34} [Dragon Mounts] (dragonmount_r35_mc1.6.x.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    EnhancedCore{1.1.3} [EnhancedCore] (enhancedcore_1.1.3.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    EP2{1.0.9} [EnhancedPortals 2] (enhancedportals-2_1.0.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ExtendedRenderer{v1.0} [Extended Renderer] (extendedrenderer for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    FlansMod{4.1.1} [Flans Mod] (flansmod-4.1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    FoodPlus{3.0rS} [§bFood Plus] (foodplus-1.6.4-3.0rS.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    633{${mod.version}} [Fossil/Archeology: Reported] (fossilsarch-reported-v1.0.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    GalacticraftCore{2.0.13} [Galacticraft Core] (galacticraft-1.6.4-2.0.13.1063.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    GalacticraftMars{2.0.13} [Galacticraft Mars] (galacticraft-planets-1.6.4-2.0.13.1063.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    hamstermod{0.1} [Hamster Mod] (hamsterrific[1.6.4]V2.1.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    hamstersforever{1.0} [Hamsters Forever] (hamstersforever-1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Hats{2.1.8} [Hats] (hats2.1.8.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    iChunUtil{2.4.0} [iChunUtil] (ichunutil2.4.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ImmibisCore{57.2.0} [Immibis Core] (immibis-core-57.2.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    inventorytweaks{1.56} [Inventory Tweaks] (InventoryTweaks-MC1.6.2-1.56-b77.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    LiquidXP{57.1.2} [Liquid XP] (liquid-xp-57.1.2.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MapWriter{2.0} [MapWriter] (mapwriter-1.6.4-2.0.17.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MFR Compat Forestry Trees{1.0} [MFR Compat Forestry Trees] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MFR Compat Extra Trees{1.0} [MFR Compat Extra Trees] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatAppliedEnergistics{1.6.4R2.7.9} [MFR Compat: Applied Energistics] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatAtum{1.6.4R2.7.9} [MFR Compat: Atum] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatBackTools{1.6.4R2.7.9} [MFR Compat: BackTools] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatBuildCraft{1.6.4R2.7.9} [MFR Compat: BuildCraft] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatChococraft{1.6.4R2.7.9} [MFR Compat: Chococraft] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatExtraBiomes{1.6.4R2.7.9} [MFR Compat: ExtraBiomes] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatForestry{1.6.4R2.7.9} [MFR Compat: Forestry] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatForestryPre{1.6.4R2.7.9} [MFR Compat: Forestry (part 2)] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatForgeMicroblock{1.6.4R2.7.9} [MFR Compat: ForgeMicroblock] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatIC2{1.6.4R2.7.9} [MFR Compat: IC2] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatMystcraft{1.6.4R2.7.9} [MFR Compat: Mystcraft] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatPams{1.6.4R2.7.9} [MFR Compat: Pam's Mods] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ForgeMultipart{1.0.0.244} [Forge Multipart] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Core{4.3.7.32} [ProjectRed] (projectredbase-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Exploration{4.3.7.32} [ProjectRed-Exploration] (projectredworld-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatProjRed{1.6.4R2.7.9} [MFR Compat ProjectRed] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatRailcraft{1.6.4R2.7.9} [MFR Compat: Railcraft] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatRP2{1.6.4R2.7.9} [MFR Compat: RP2] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatSufficientBiomes{1.6.4R2.7.9} [MFR Compat: Sufficient Biomes] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatThaumcraft{1.6.4R2.7.9} [MFR Compat: Thaumcraft] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ThermalExpansion{3.0.0.7} [Thermal Expansion] (thermalexpansion-3.0.0.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatThermalExpansion{1.6.4R2.7.9} [MFR Compat: Thermal Expansion] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatTwilightForest{1.6.4R2.7.9} [MFR Compat: TwilightForest] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatVanilla{1.6.4R2.7.9} [MFR Compat: Vanilla] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    MineFactoryReloaded|CompatXyCraft{1.6.4R2.7.9} [MFR Compat: XyCraft] (minefactoryreloaded-2.7.9-final.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    AS_Minions{1.7.9b} [Minions] (minions_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    BuildMod{v1.0} [Build Mod] (modbuild for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Morph{0.7.2} [Morph] (morph-beta-0.7.2.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    cfm{3.3.4} [MrCrayfish's Furniture Mod] (mrcrayfishfurnituremodv3.3.4(1.6.4).jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    necromancy{1.5} [Necromancy] (necromancy_1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    NEIPlugins{1.1.0.6} [NEI Plugins] (neiplugins-1.1.0.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    NotEnoughCodecs{0.1} [NotEnoughCodecs] (notenoughcodecs-0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    notenoughkeys{0.0.4} [Not Enough Keys] (notenoughkeys-1.6.4-0.0.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    OpenMods{0.5.1} [OpenMods] (openmodslib-0.5.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    OpenBlocks{1.2.9} [OpenBlocks] (openblocks-1.2.9.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Transmission{4.3.7.32} [ProjectRed-Transmission] (projectredintegration-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Transportation{4.3.7.32} [ProjectRed-Transportation] (projectredmechanical-BETA-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Waila{1.5.2a} [Waila] (waila_1.5.2a.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    TConstruct{1.6.X_1.5.5.7} [Tinkers' Construct] (tconstruct_mc1.6.4_1.5.5.7.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Compatibility{4.3.7.32} [ProjectRed-Compatibility] (projectredcompat-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Integration{4.3.7.32} [ProjectRed-Integration] (projectredintegration-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Illumination{4.3.7.32} [ProjectRed-Illumination] (projectredlighting-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ProjRed|Expansion{4.3.7.32} [ProjectRed-Expansion] (projectredmechanical-BETA-1.6.4-4.3.7.32.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    QuantumCraft{1.1} [qCraft] (qcraft1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    RandomThings{1.9} [Random Things] (random things v. 1.9 [MC 1.6.4].jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    SaintsPack{0.5} [Saintspack] (saintspack.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    secretroomsmod{4.6.2} [The SecretRoomsMod] (secretroomsmod-universal-1.6.4-4.6.2.319.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Statues{2.1.1} [Statues] (statues-1.6.4-2.1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Sync{2.2.3} [Sync] (sync2.2.3.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    technictweaker{1.0} [technictweaker] (technictweaker-1.0.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    TMechworks{33.c001660} [Tinkers' Mechworks] (tmechworks_mc1.6.4_0.1.6.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    TrailMix{2.0.0} [TrailMix] (trailmix2.0.0.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    tropicraftmod{v5.1.7 for MC 1.6.4} [Tropicraft] (tropicraft v5.1.7 Mod for MC v1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    volleyballmod{v5.1.7 for MC 1.6.4} [Volleyball] (tropicraft v5.1.7 Mod for MC v1.6.4.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Waypoints{1.0.2} [Waypoints] (waypoints-1.6.4-1.0.2fix.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    AIBlock{v1.0} [AIBlock] (weather v1.591 Mod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    WeatherMod{1.591} [Weather and Tornadoes] (weather v1.591 Mod for MC v1.6.4.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    witchery{0.20.5} [Witchery] (witchery-1.6.4-0.20.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    worldofdinos{1.0} [World of Dinos] (worldofdinos-1.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    Chisel{1.5.0} [Chisel] (zchisel-1.6.4-1.5.0.1.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    McMultipart{1.0.0.244} [Minecraft Multipart Plugin] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    ForgeMicroblock{1.0.0.244} [Forge Microblocks] (ForgeMultipart-universal-1.6.4-1.0.0.244.jar) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
    TConstruct Environment: Environment seems clean, however you are using a modpack; please report it to the pack author, not us!
    Launched Version: 1.6.4-Forge9.11.1.965
    LWJGL: 2.9.0
    OpenGL: AMD Radeon(TM) R5 Graphics GL version 4.5.13399 Compatibility Profile Context 15.201.1101.0, ATI Technologies Inc.
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Resource Pack: Default
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

[JaariAtmc]

2 hours ago, Foyiwae said:

Hello,

So I tried playing Attack of the B-Team after not playing for a while. The game launches fine, but when I try to load up a server the game crashes. I tried reading on here before posting, but I have no idea what I am doing so I have no idea where to start looking.

Thank you for any help you can provide.

    witchery{0.20.5} [Witchery] (witchery-1.6.4-0.20.5.zip) Unloaded->Constructed->Pre-initialized->Initialized->Post-initialized->Available
 

You are most likely running Attack of the Bteam 1.0.13d. However, any server out there runs the older recommended version (1.0.12c). This results in IDs not matching the server. Just downgrade to 1.0.12c if you want to play on servers. Your singleplayer worlds may become unusable on 1.0.12c though.