VBulletin 4 databace Eror

[milad-sasha]

plz help me to resolve this eror

Database error in vBulletin :

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' (2)
/home/rossoner/domains/rossoneri.ir/public_html/includes/class_core.php on line 314

MySQL Error   : 
Error Number  : 
Request Date  : Wednesday, January 25th 2012 @ 06:29:10 PM
Error Date    : Wednesday, January 25th 2012 @ 06:29:10 PM
Script        : http://www.rossoneri.ir/
Referrer      :
http://www.rossoneri.ir/showthread.php/437-%D8%A8%D8%AD%D8%AB-%D9%88-%D8%AA%D8%A8%D8%A7%D8%AF%D9%84-%D9%86%D8%B8%D8%B1-%D9%BE%DB%8C%D8%B1%D8%A7%D9%85%D9%88%D9%86-%D9%86%D9%82%D9%84-%D9%88-%D8%A7%D9%86%D8%AA%D9%82%D8%A7%D9%84%D8%A7%D8%AA-%D8%B1%D9%88%D8%B3%D9%88%D9%86%D8%B1%DB%8C/page11
IP Address    : 2.145.242.164
Username      : 
Classname     : vB_Database
MySQL Version :

tnx

[Lynne]

MySQL can't connect (through socket):

See this page for the causes of this error: https://www.vbulletin.com/docs/html/cantconnect You will most likely need to talk to your host in order to fix the issue.