Error 500 when login on ask.fedoraproject.org

[Joakim Erdfelt]

When attempting to login using Google OAuth2 at ask.fedoraproject.org we
get an Error 500.

Internal server error
system error log is recorded, error will be fixed as soon as possible
please report the error to the site administrators

Typical URL (state, code, and session_state values are truncated with "..."
for this email)

https://ask.fedoraproject.org/en/account/signin/complete-oauth2/?state=ee...