Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [1049] Unknown database 'a10' in _registry_check_code() (line 3462 of /var/www/a10networks/docroot/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [1049] Unknown database 'a10' in _registry_check_code() (line 3462 of /var/www/a10networks/docroot/includes/bootstrap.inc).