database error many messages,needed help. (realy need help)

[geevest.com]

hello,

i get many error from my database :
its the sample :

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/zhazha/public_html/forum/includes/class_core.php on line 311

MySQL Error :
Error Number :
Request Date : Monday, June 16th 2008 @ 03:17:01 AM
Error Date : Monday, June 16th 2008 @ 03:17:02 AM
Script : http://www.anakayam.us/forum/showthread.php?t=12887
Referrer : http://www.anakayam.us/forum/forumdi...er=desc&page=3
IP Address : 125.162.207.54
Username :
Classname : vB_Database
MySQL Version :
=================================
Database error in vBulletin 3.7.0:

Invalid SQL:

SELECT `userid`, `username`, `vbbank`, `vbbux`,
(`vbbank` + `vbbux`) AS totalpoints
FROM user
WHERE ((usergroupid != '5') AND (usergroupid != '7')) AND ((`vbbank` + `vbbux`) > 0)
ORDER BY totalpoints DESC
LIMIT 10;

MySQL Error : MySQL server has gone away
Error Number : 2006
Request Date : Monday, June 16th 2008 @ 03:16:50 AM
Error Date : Monday, June 16th 2008 @ 03:16:55 AM
Script : http://www.anakayam.us/forum/vbplaza.php
Referrer :
IP Address : 125.161.179.206
Username : jakarta
Classname : vB_Database
MySQL Version :
========================
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/zhazha/public_html/forum/includes/class_core.php on line 311

MySQL Error :
Error Number :
Request Date : Monday, June 16th 2008 @ 03:17:03 AM
Error Date : Monday, June 16th 2008 @ 03:17:03 AM
Script : http://anakayam.us/forum/login.php?do=lostpw
Referrer : http://anakayam.us/forum/register.php?do=addmember
IP Address : 66.249.90.136
Username :
Classname : vB_Database
MySQL Version :
==============================