Since version 20.3.0 the game crash at startup
It worked fine on 20.2.1

Neoforge 21.1.89
Minecraft 1.21.1
EnchantWithMob 20.3.0

Here's the crash report:
https://gist.github.com/Soforak/43ddf831acc3ce3cc8d06efc5fa0ac76

And what I get on screen:

sorry for delay. fixed in 1.21.1-20.3.1!

Ahah nice delay!
Thanks a lot, it now works fine