@awoo@jeder This made me research it a bit more: After loading the site in private browsing (no cookies - German language by default) the redirect that happens at the connection search correct gives me a different error page. Apparently my Firefox (residential connection, no tor whatsoever) is too much of a bot like behaviour and it blocks me.
It helpfully suggested that I could try logging in, I made an account and logged in and it magically started working
