I can't login correctly with my lemmy.world account anymore

my account autotel@lemmy.world was working fine until a gew days ago. I can login and it displays the 'login correct' message on the website But whenever I want to post or comment, it tells me that I need to login. In the jerboa app, I can login aswell but it says that I am 'anonymous' and I cannot do any user stuff. If I open my profile page, it shows all what I've posted under that account. It's weird!

I care about that account because I created a couple of communities with it.