De nuevo como suele pasar habitualmente y ya se comento en otras ocasiones la web no para de lanzar distintos errores, suele petar mucho, dejo algunos de los problemas que marca el servidor.
Service Temporarily Unavailable
The server is temporarily unable to service your request due to maintenance downtime or capacity problems. Please try again later.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator,
webmaster@diablo3-esp.malago.es and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
Y otros muchos mas de la rama SQL y demás, por no comentar los bajones que da en las conexiones en multitud de ocasiones a la hora de conectar con la BD.