Updating from 3.7.1 and getting errors
 

I havent messed with my forum in a year and decided to upgrade. I shut off the forum uploaded the files on edited the config file. when i went to update i got this.
Code:
Database error in vBulletin :
mysql_connect() [function.mysql-connect]: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
/home/djjeffa/djjeffa.com/vb/includes/class_core.php on line 311
MySQL Error :
Error Number :
Request Date : Sunday, February 21st 2010 @ 06:31:40 PM
Error Date : Sunday, February 21st 2010 @ 06:31:40 PM
Script : http://www.djjeffa.com/vb/install/upgrade.php
Referrer :
IP Address : 151.199.253.54
Username :
Classname : vB_Database
MySQL Version :
Any advice?