What happened?

My world was normal until i left it, after a while i downloaded some mods and this message pops up

I created another world and the same thing happens, when i quit it and come back the message pops up
I decided to create a world without the Better x generation type and the message did no pop up and the world loaded as normal
Mod list:

Log:
latest.log

BCLib

3.0.11

Fabric API

0.85.0

Fabric Loader

0.14.21

Minecraft

1.20.1

Relevant log output

No response

Other Mods

No response

Thank you for the report. This is a duplicate of #113, so Im closing this issue, but feel free to join the discussion over there...