Possible Fixes

Yes

Modpack Version

1.0

What happened?

Me and my friend were playing yesterday, he logged off and server crashed.
Now we are unable to join the server because it's crashing instantly.

Description: Ticking entity

java.lang.NullPointerException: Cannot invoke "net.minecraft.server.level.ClientInformation.language()" because "p_301998_" is null

Crash Log

https://gist.github.com/M0diis/877e22f1167d26d1726bb895c73d3a7c

Latest.Log

https://gist.github.com/M0diis/d5f57fdb5b702f5d60ae1cfb76efc906

I reinstalled the server and it seems to have fixed the issue.