I have the same error message, but it seems more severe. I´ll use the template for additional and changed information in my case.
SEVERITY: 1LOCATION: Login Screen, the moment I attempt to login with correct account information.REPRODUCIBILITY: ALWAYS (16/16)ADDITIONAL INFORMATION: Before this error happened I got the game account deleted because I had no cards. I chose the same name as before, saw a single frame of the forge on my first login and since then only the error message combined with a game crash. No loading screen, the crash already happens during login in a matter of seconds.
Maybe it´s connected to the missing cards bug.
The bug seems to be independent of local files, a friend could log in on my computer without the bug appearing ever. Sadly I had no chance to try login on another computer with my account.
I´ll send the logfile as pm.