Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] Connection refused in _registry_check_code() (line 3504 of /home/doca_st/htdocs/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] Connection refused in _registry_check_code() (line 3504 of /home/doca_st/htdocs/includes/bootstrap.inc).