Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111) in drupal_is_denied() (line 1916 of /home/cy/public_html/includes/bootstrap.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111) in dblog_watchdog() (line 147 of /home/cy/public_html/modules/dblog/dblog.module).