When a user tries to sign up for a new account they get this message. I've replicated this myself.
An unexpected database error occurred. Please try again later.
<!-- Mysqli prepare error: MySQL server has gone away -->
There is no server error logged.
Forums are working just fine, but no new users are able to sign up.
Any ideas where I might start looking first? I apologize for my lack of knowledge but I bet if I can get a starting point I might be able to tackle this.