Sometimes the game crashes and sometimes it starts with packmode installed
If I delete the mod packmode, everything is fine.

The crashlog is saying that CraftTweaker encountered an error during the load_registries event phase due tue PackMode API not loaded yet.
Allready talked to the CT team but nothing they can do about it so here I am.

crashlog: https://pastebin.com/2QgdQsrn
log: https://gist.github.com/Diversion98/4f547267a169996d3e04f0365bff03bd

Cheers.