Describe the bug
In this case, the error is caused by the org.betterx.bclib mod, which uses the world generation functionality, and possibly conflicts with the C2ME mod. Modifying org.betterx.bclib is a potential source of the problem.

To Reproduce
Steps to reproduce the behavior:

1. In fact, the players and I were building a spawn while we were loading BetterEnd in parallel, a few hours later this crash occurred

Expected behavior

Screenshots

Runtime info (please complete the following information):

• OS: UNBUNTU 20
• Minecraft version: 1.20.1
• Mod version: c2me-fabric-mc1.20.1-0.2.0+alpha.11.0.jar
• Mod branch: (fill this if you are not using the default ver branches)

Crash reports / logs
https://mclo.gs/0CcHU6h

Other mods
https://mclo.gs/sEwaWL4

Checklist

• I am using the official version of the mod.
• I tried the latest development version but the issue persists.
• I searched for similar open issues and could not find an existing bug report on this.

Additional context

• Lates log: https://mclo.gs/4fWIZwh

This should be reported to bclib instead.

Closing as the linked issue is resolved.