Internal Server Error: /accounts/confirm-email

[leicray]

Describe the bug
Apologies if this has been reported previously.

Error messages related problems with new users' attempts confirm their email address are frequently sent to the admins. Quick checks of the users' account details show no anomalies. In addition, we rarely receive contacts from the users to complain that anything has gone wrong.

A typical snippet from an error message will say:

Exception Type: DoesNotExist at /accounts/confirm-email/NTM4MA:1qsf4H:vUvOzJbitBHAeEGY-Bebu0mv7Sp5Ybf4IBONN0fBX5s/
Exception Value: UserProfile matching query does not exist.
Request information:
USER: <username>