Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] Connection refused in _registry_check_code() (line 3481 of /var/www/xpl_live/builds/2018-04-22-11-43-13/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] Connection refused in _registry_check_code() (line 3481 of /var/www/xpl_live/builds/2018-04-22-11-43-13/includes/bootstrap.inc).