I can't do anything anymore on the website, I'm constantly being logged out or sometimes shown as the wrong user and most buttons don't work anymore.

Jerboa still lets me use my account but no matter which PC/Laptop/Smartphone I use I can't do anything anymore in a web browser.

The web page at first shows that I'm not logged in, then when I refresh the page, I'm usually logged in but most buttons don't work (eg. clicking on my name in the top right corner doesn't open the context menu - context menus in general don't work). I can't post, upvote, anything. Sometimes, when I refresh the page, it shows me being logged in as a different user as well, but this is gone after another refresh.

Funnily enough I have no problems in Jerboa. Everything works fine there.

It's been like this for about 2 days now.