Apple music library not working

Hi, i recently resubscribed to apple music after quite some time. I try to add music to my library such as songs or playlists but it won't add. They appear for some seconds but then they disappear. On my mac i get this error message: Genius results can’t be updated right now. An unknown error occurred (18004). On my iPhone i can't really do anything. I also got the message: icloud music library can't sync (or something like that i don't really remember). I have tried every possible solution i found online, such as turning off sync, signing out and back in, uninstalling etc, and nothing helped. I would appreciate any help!