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The stack trace shows which mod caused the problem (in my case it was at com.pahimar.ee3.reference.Textures., so the mod in question is EE3). Remove or reinstall that mod.

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  • crash with GT5.09.24
    via GitHub by bear989
    • java.lang.NoClassDefFoundError: net/minecraft/client/multiplayer/WorldClient at gregtech.common.GT_Proxy.onWorldTickEvent( at cpw.mods.fml.common.eventhandler.ASMEventHandler_4_GT_Proxy_onWorldTickEvent_WorldTickEvent.invoke(.dynamic) at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke( at at cpw.mods.fml.common.FMLCommonHandler.onPreWorldTick( at net.minecraft.server.MinecraftServer.func_71190_q( at net.minecraft.server.dedicated.DedicatedServer.func_71190_q( at net.minecraft.server.MinecraftServer.func_71217_p( at at net.minecraft.server.MinecraftServer$ Caused by: java.lang.ClassNotFoundException: net.minecraft.client.multiplayer.WorldClient at net.minecraft.launchwrapper.LaunchClassLoader.findClass( at java.lang.ClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 10 more Caused by: java.lang.RuntimeException: Attempted to load class bjf for invalid side SERVER at cpw.mods.fml.common.asm.transformers.SideTransformer.transform( at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers( at net.minecraft.launchwrapper.LaunchClassLoader.findClass( ... 12 more

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