Popular german Website (owned by ) stuck on login with Brave

Please debug the Login of www.-kleinanzeigen.de This problem exists since I started using Brave, does´t matter which OS! I do not experience this problem on Chrome or Safari. I found an closed thread form march, reporting same problem: Bug reporting: Kleinanzeigen login freezes

Can't access websites (your connection to this site is not secure) - Browser Support - Brave Community

Brave browser hangs while loading different sites - Desktop Support - Brave Community

The Black Sailor Whose Heroic Actions During a Shipwreck Made Him an Instant Celebrity of the Roaring Twenties, History

Painted Devils by Margaret Owen, Hardcover

Lebanese brave badly polluted water to swim at public beaches

Everyday Utopia, Book by Kristen R. Ghodsee, Official Publisher Page

Login Broken on almost All Sites - Brave Community

Google login prompt while browsing random website - browser - Brave Community

My favourite film LearnEnglish Teens

Website login pages become VERY slow to respond as of Nov. 16th - Desktop Support - Brave Community