Bonsai Trees version: 1.1.2
Forge version: 2806
I am not using Optifine: no optifine
Link to Crashlog: https://gist.github.com/darkhax/d2955b79ca58ece7c956b2299b8239cd

Description of the problem including expected versus actual behavior: When joining a world, I got the crash. I am guessing the world was put into a state that your mod does not account for.

Steps to reproduce:
I removed all the default stuff, and then changed the ID of an existing soil type. There are no CraftTweaker scripts in this environment.

I think this is a duplicate of #59