@lunginspector I realized the problem was that entering the random 6-digit OTP code wasn't working because I had successfully logged in before, and I recently downgraded my iOS operating system, so it's no longer working. Could you add a method to delete previously logged-in accounts?
@lunginspector I followed your instructions and it's still the same. I tried logging in with a different ID and it worked fine. Only the other ID is having this error. I can log into the App Store normally with that other ID.