Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] Connection refused in drupal_is_denied() (line 2193 of /var/www/clients/client1/web1/web/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] Connection refused in db_select() (line 2579 of /var/www/clients/client1/web1/web/includes/database/database.inc).