NotSouthAfricant

So I can play for a few minutes before the game just crashes. It happening every time. The crash report is saying this: ---- Minecraft Crash Report ---- // Don't be sad, have a hug! Time: 29/04/20 22:10 Description: Exception in server tick loop java.lang.IllegalAccessError: tried to access method net.minecraft.server.management.PlayerManager.func_72690_a(IIZ)Lnet/minecraft/server/management/PlayerInstance; from class codechicken.chunkloader.ChunkLoaderManager at codechicken.chunkloader.ChunkLoaderManager.cleanChunks(ChunkLoaderManager.java:835) at codechicken.chunkloader.ChunkLoaderManager.tickEnd(ChunkLoaderManager.java:860) at codechicken.chunkloader.ChunkLoaderEventHandler.tickEnd(ChunkLoaderEventHandler.java:39) at cpw.mods.fml.common.SingleIntervalHandler.tickEnd(SingleIntervalHandler.java:34) at cpw.mods.fml.common.FMLCommonHandler.tickEnd(FMLCommonHandler.java:141) at cpw.mods.fml.common.FMLCommonHandler.onPostWorldTick(FMLCommonHandler.java:282) at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:677) at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:587) at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:175) at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:484) at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583) So I'm assuming its to do with one f these mods codechickencore 0.9.0.7.jar ChickenChunks 1.3.3.3.jar However when I delete these from the modpack it just crashes at launch unlike when I have deleted other mods where it just asks if I want to play without the mod before starting the game. Please help.

How did you manage to install the furniture mods? I'm playing on tekkit and can't seem to find a version of MrCrayfish that will be compatible with 1.6.4 which is the latest version of Tekkit. Any help?