I've made cheese and when I tried to convert it into slices with right-clicking vanillafix send me a notification about growthcraft rice ran into a problem, here's the crash report:
crash-2019-07-21_20.09.47-server.txt

What does vanilla fix do? If you disable it, do you still crash?

It is a crash when GC checks if the held item is valid for slicing a cheese wheel. I'll check it after work.