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)

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?