https://media.discordapp.net/attachments/246963916926615554/1021010838452179044/unknown.png

This is the only error I have, as latest, debug, and server logs don't have anything in them. Same error kicked me on reload, the only fix was to have the server owner move me to overworld.

I don't use custom player heads in too many rooms, but they are in several. If custom player heads in your vicinity cause the kick then..... I'm not sure which mod could be causing the problem. But it is likely a client-side only mod, I guess?

After a bit playing, I got the same kick, after looking at a head with JEI.