Can you disable everything but fulloverlaypackage, mirror image handler, player effect removal, and this? Then try attacking?
You have a bunch of stuff there I'm unfamiliar with.
EDIT: Unrelated note, you should check out Corun's build of CreatureGen:
https://github.com/Corun-Kail/KenL-C...ag/v1.82-alpha
EDIT2:
Item Durability is out of date,
Customized Item Generator is out of date,
Extra stat to saves is out of date... probably others too
EDIT3: you might also want to check out
this height extension and
the updated version of moon tracker for the Feb 16th updates. But the main thing is to re-test with just the extensions I have listed (fulloverlaypackage, mirror image handler, player effect removal, and this) and see if you're still getting the error. I think it's another extension needing a compatibility update.
EDIT4: you also don't need the DR bypass extension anymore since Kel integrated it