new post error [3.6.4]

[RaistliN]

when we send a new post or new messager..Database give errors and sending a mail about this report

Database error in vBulletin 3.6.4:

Invalid SQL:
UPDATE session SET newposts = newposts+1 WHERE NOT ISNULL(newposts);

MySQL Error  : Unknown column 'newposts' in 'where clause'
Error Number : 1054
Date         : Sunday, December 3rd 2006 @ 04:20:35 PM
Script       : http://www.yolgecenhani.net/newreply.php?do=postreply&t=42399
Referrer     : http://www.yolgecenhani.net/merhaba-t42399.html
IP Address   : 
Username     : aciidjxi
Classname    : vb_database