in my ispconfig setup cronjobs are not working and I am getting errors related to cronjons in panel. the repeated error message is Code: Thu Mar 12 09:31:14 EET 2015 DB::__construct No such file or directory Thu Mar 12 09:31:14 EET 2015 PHP Warning: mysqli::mysqli(): (HY000/2002): No such file or directory in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 72 Thu Mar 12 09:31:14 EET 2015 PHP Warning: mysqli::close(): Couldn't fetch db in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 82 however in another ispconfig installation, I do not have this problem; crons are working there. I could not find the problem with this one.