hey, i have the mod installed but it doesnt work. is there any known conflictions?

There is a known conflict with Charm, but other than that, I can't help you much without further information.
Do you have a log file (latest file in .minecraft/logs)?

https://paste.gg/p/anonymous/8b98ba6caeda4912a450e937941471db

Alright, the mod seems to be loading properly and without errors, so I can't directly see where the problem is.
And with that many mods, it is unfortunately very likely to be some kind of conflict with another mod that modifies the grindstone.
You can try using the mod by itself, and if that works, it would confirm that this is a compatibility issue. Unless you happen to find what specific mod it conflicts with though, I don't believe I can do much about this.