Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2003] Can't connect to MySQL server on '192.168.126.4' (111) in fast_404_validate_path_drupal() (line 124 of /var/www/html/znaj/www/html/sites/all/modules/contrib/fast_404/fast_404.inc).

Additional

PDOException: SQLSTATE[HY000] [2003] Can't connect to MySQL server on '192.168.126.4' (111) in dblog_watchdog() (line 150 of /var/www/html/znaj/www/html/modules/dblog/dblog.module).