New villager profession makes the mod crash

Hi i'm making a new mod and in this mod i added a new villager type. however, when i try to Run Client, it won't work. I tried :

-Regenerate Code and Build

-make an entirely new mod and it showed me the same error

-make another villager type

also my villager is named "Geologist" and his block is the ruby block.

here is the log:

https://pastebin.com/TqL0jqT5