Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2002] No such file or directory in lock_may_be_available() (line 167 of /var/www/web110582/html/includes/lock.inc).

Additional

PDOException: SQLSTATE[HY000] [2002] No such file or directory in _registry_check_code() (line 3472 of /var/www/web110582/html/includes/bootstrap.inc).