I'm testing the mods I've installed in a Minecraft version 1.20.2 and when I tried to hit the creeper, it crashed my game.
The same happened when the creeper tried to explode.
I also tried with other entity (zombie) and the same happened when I hit the zombie.

crash-2024-02-21_15.57.33-server.txt

I don't really know what could be wrong, but maybe there's a lot of incompatibility with the mods I have?

Thank you so much Atomic, I tested the mod and everything's working just fine!

Biiiiig W
Sorry for putting on you more work tho.

It looks like a forge version incompatibility. You use forge 48.1.0, that version of infernal mobs was built against 48.0.6

Let me see about updating that for you: e80b02a

Pushed a new version of infernal mobs for MC 1.20.2 to curse for you.