When I try to join my friends Realm, after I started the game, I can't get into the Realms menu, and this specific (Realms(500)) error code pops up immediately.

I've already tried to reboot my PC, log out of my profile, uninstall and then reinstall the game, reconnecting to internet, and so many other things.

Couldn't find any help on forums, and getting frustrated about the Error.

I'd be very happy if anyone could help me!