Forge 2709
BOP 2392

https://pastebin.com/LYHKSMKj

crash-2024-02-03_11.56.27-server.txt

Is this issue dead?

There's really nothing that suggests this is BOP's fault aside from a single line in the stacktrace. It's caused by animals spawning, which is done from the chunk generator (In this case, BOP's chunk generator since it's using its world type), but it's just copied straight from vanilla so there shouldn't be any issue.

Also, you've given no additional info at all, and unless you've tested it with just BOP by itself and/or narrow it down to a specific mod, there's really nothing we can do.

Ok , maybe this is just an issue that is just pure unlucky , I myself can't replicate it either :)