Describe the bug

When on Minemalia Creative(ip: play.minemalia.com and then click servers then click creative) and a chat message is sent, you get disconneted from the server.

Modpack version

5.8.0

Launcher

Prism Launcher

Confirm

• This bug report is about an issue with the modpack itself, I have not modified the mods nor added any resource packs. If this is not the case, I know that I should post the issue to modpack's Discord support channel instead.

Additional context

here is picture(of when i sent the message "a" in chat) and log and 2nd picture possibly related(before the disconnection):
log: https://mclo.gs/jNS2Gkf

Well, they do say "use 1.20.1 for best experience" so it may be a server bug. Try the equivalent version of FO.

That said, you're using offline mode, so you're on your own.