I cant sign into my Quixel Bridge account

If I try to sign into my quixel bridge account inside of Unreal Engine 5, then a Window appears and after 1 sec it disappears again. I already tried to reinstall Bridge. And when I try to change the library path in the preferences settings, then it doesn’t allow me to save the new Library path. If I hit the Save button, nothing happens. I also enabled the Web Browser plugin and Bridge plugin inside of Unreal Engine 5 already.