Unable to connect to the photo database server at this time
PLEASE PRESS REFRESH ON YOUR BROWSER TO TRY AGAIN.

Why do you get this error? Maybe because:

If you get this error, contact your server administrator and check if MySQL is indeed running on your server. This error message can also mean that the MySQL server is overloaded - can easily happen in shared hosting where 250 sites fight for one CPU and same system resources.

(Info by Exhibit Engine)