Modpack version
1.35

Issue
Startup log is full of errors, seemed to play ok till it was time to exit then froze/crashed, ill add a shutdown/crash log later if it does that again

Logs
https://paste.ee/p/x5ohZ

Issues and errors in the log is very normal in modded Minecraft, as long as you're not experiencing any issues you can safely ignore them :)

Edit: I will of course reopen the issue if you supply the crash report from the exit crash.