mysql error :@

[kyrenator]

I get emails all the day with a database error! Sometimes I cant access my site :(

the error is this:

mysql_connect() [<a href='function.mysql-connect'>function.mysql-connect</a>]: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (111)
/home/treladik/public_html/includes/class_core.php on line 311

please help me as soon as possible!
thanks

[Lynne]

See this page for the causes of this error: http://www.vbulletin.com/docs/html/cantconnect