I need serious help with my account

I was suddenly logged out of my account, then i tried login in with my passkey but it didn’t work, also didn’t with my password, i know my password is right, since thats what its like in the passwords app, i also logged in it like yesterday with the passkey and then it did work work, my account (last picture) still exist since when i look up my account in the friends list on my alt (you can see my alt on the second pic) also as you can see on switch accounts my alt is there but my main isn’t, how do i fix this an what even happened?