منتدى استراحات زايد

Can someone tellme what this error means:

Database error in vBulletin 3.8.4:

Code:
Invalid SQL:

SELECT *
FROM session
WHERE userid = 0
AND host = '65.49.2.10'
AND idhash = 'cc3a29bcff28787b81f12b86707b3e82'
LIMIT 1;

MySQL Error : Unknown column 'userid' in 'where clause'
Error Number : 1054
Request Date : Friday, February 26th 2010 @ 10:17:45 AM
Error Date : Friday, February 26th 2010 @ 10:17:45 AM
Script : http://website.com
Referrer :
IP Address : 65.49.2.10
Username :
Classname : vB_Database
MySQL Version :
and

Code:
Database error in vBulletin 3.8.4:

Invalid SQL:

SELECT languageid,
phrasegroup_global AS phrasegroup_global,
phrasegroup_postbit AS phrasegroup_postbit,
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 'languageid' in 'field list'
Error Number : 1054
Request Date : Friday, February 26th 2010 @ 10:10:32 AM
Error Date : Friday, February 26th 2010 @ 10:10:32 AM
Script : http://www.website.com/forums/external.php?type=js
Referrer :
IP Address : 66.249.71.37
Username :
Classname : vB_Database
MySQL Version :
I have been receiving those emails and my forum has a database error. Help please!