Infogram: User account blocking by Internal Server error

If you send a language=en in https://infogram.com/api/users/me user be forever get an Internal Server error EVEN AFTER re-logining: https://youtu.be/AxYa11lEiWA I idk why does hackerone can't upload this video so I uploaded this video privately to the youtube! In this video, I'm trying to relogin...