Getting a crash with the 1.12.2 version trying to launch it within a mod pack.

Forge 2811
FossilArch 8.0.0
LLib 1.7.17-1.12.2
TheBetweenlands-3.4.4

Full mod list: https://pastebin.com/5qPRKz0R

Crash Log: https://paste.dimdev.org/ifoximudeb.mccrash

Issue was reported to the Fossil Team but I'm not sure if there's something that can be done on this end.

https://github.com/FossilsArcheologyRevival/FossilsArcheologyRevival/issues/1124

This is a problem on F/A's side. I've posted a comment with a potential solution there.

Looks like they have a handle on this issue:
https://github.com/FossilsArcheologyRevival/FossilsArcheologyRevival/commit/526a91feb9365e31532bfb15c66cb2cb4a31d2c8