Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[HY000] [2005] Unknown MySQL server host 'old.hirek.unideb.hu' (0) in db_select() (line 2606 of /var/www/whocc.unideb.hu/includes/database/database.inc).

Additional

PDOException: SQLSTATE[HY000] [2005] Unknown MySQL server host 'old.hirek.unideb.hu' (2) in custom_search_theme() (line 703 of /var/www/whocc.unideb.hu/sites/all/modules/contrib/custom_search/custom_search.module).