Mods:
Forge - 39.0.0
Flywheel 1.18-0.4.0
Create - 1.18 - v0.4
Xaeros minimap - 21.22.3.1
Jej - 9.0.0.40

The game crashed whilst unexpected error
Error: java.lang.NullPointerException: Unexpected error
Exit code: 255

crash-2021-12-11_17.26.40-client.txt

Crash takes place during exploration (move few blocks to any direction, or sometimes even if standing still after few seconds) so I assume this may be a chunk loading problem.

Same issue here

Duplicate of #53, thanks for the crash log!