Getting mysql errors

[p@ndu]

Hi Guys

my forum i recently updated to 4.1.9 versions and i am getting all this error notifications via email i will be thankfull if some one help me to solve them

Error 1:

Database error in vBulletin 4.1.9:

Invalid SQL:

REPLACE INTO search (userid, ipaddress, personal, searchuser, forumchoice, sortby, sortorder, searchtime, showposts, orderedids, dateline, displayterms, searchhash)
VALUES (0, '66.249.66.11', 1, 'Emperor', '', 'post.dateline', 'DESC', 0.00162, 1, '12060,12030,11926,11862,11833,11779', 1324394595, 'a:6:{s:5:\"words\";a:0:{}s:9:\"highlight\";a:0:{} s:6:\"common\";a:0:{}s:5:\"users\";a:1:{i:3;s:7:\" Emperor\";}s:6:\"forums\";i:0;s:7:\"options\";a:3: {s:11:\"starteronly\";i:0;s:11:\"childforums\";i:1 ;s:6:\"action\";s:7:\"process\";}}', '72da748794b3b9dff864e7cc822fcac9');


Error Number : 1146
Request Date : Tuesday, December 20th 2011 @ 08:53:15 PM
Error Date : Tuesday, December 20th 2011 @ 08:53:15 PM
do=findthanks_user_gave&u=3[/url]
Referrer :
IP Address : 66.249.66.11
Username : Unregistered
Classname : vB_Database
MySQL Version :

Error 2:

Database error in vBulletin 4.1.9:

Invalid SQL:

SELECT languageid,
phrasegroup_global AS phrasegroup_global,
phrasegroup_awclsoftware AS phrasegroup_awclsoftware,
phrasegroupinfo AS lang_phrasegroupinfo,
options AS lang_options,
languagecode AS lang_code,
charset AS lang_charset,
locale AS lang_locale,
imagesoverride AS lang_imagesoverride,
dateoverride AS lang_dateoverride,
timeoverride AS lang_timeoverride,
registereddateoverride AS lang_registereddateoverride,
calformat1override AS lang_calformat1override,
calformat2override AS lang_calformat2override,
logdateoverride AS lang_logdateoverride,
decimalsep AS lang_decimalsep,
thousandsep AS lang_thousandsep
FROM language
WHERE languageid = 1;

MySQL Error : Unknown column 'phrasegroup_awclsoftware' in 'field list'
Error Number : 1054
Request Date : Tuesday, December 20th 2011 @ 10:26:33 PM
Error Date : Tuesday, December 20th 2011 @ 10:26:33 PM
Referrer :
IP Address : 66.249.66.131
Username :
Classname : vB_Database
MySQL Version :

Eroor 3 :

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/******/public_html/includes/class_core.php on line 314

MySQL Error :
Error Number :
Request Date : Saturday, December 17th 2011 @ 01:48:42 PM
Error Date : Saturday, December 17th 2011 @ 01:48:42 PM
Referrer :
IP Address : 66.249.71.210
Username :
Classname : vB_Database
MySQL Version :