Can't connect to local MySQL server????

[KOMA]

Suddenly my calendar says:

Warning: mysql_get_server_info() [function.mysql-get-server-info]: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2) in /nfs/c02/h10/mnt/21491/domains/****.com/html/calendar/setup/integrity.php on line 36

Warning: mysql_get_server_info() [function.mysql-get-server-info]: A link to the server could not be established in /nfs/c02/h10/mnt/21491/domains/****.com/html/calendar/setup/integrity.php on line 36

I have no idea how to fix this, don't know much about SQL,
Please Help...

[Brian]

Something is wrong with mySQL on your server. You need to contact your web host or server administrator for help.