Hey hachiware117, thanks for reporting this!
Unfortunately I can't seem to reproduce this bug on my machine. From my testing so far, just enabling AutoFarm doesn't seem to be enough to trigger the crash, even when there is a farm nearby for AutoFarm to render.
Could you please post the full crash report so that we have more context on the issue?
Also, I do see one area where vanilla Minecraft renders VertexBuffers in a slightly different way to how Wurst does it. Maybe removing that inconsistency could fix the crash, although I personally can't verify it since the crash doesn't happen for me.
Could you try with this pre-release build and let me know if that makes the crash go away?
Btw @poeticedda_ maybe you could try this too? The sooner we can verify if this potential fix works and get a full crash report, the better.