Issue: database error after upgrading to 2.3.1

Database error in vBulletin 3.8.2:

Invalid SQL:

                       SELECT IF(visible = 2, 1, 0) AS isdeleted,



                       thread.*

                       , article.*, thread.threadid,
       commenter.usergroupid AS lastusergroupid,
       commenter.membergroupids AS lastmembergroupids,
       commenter.homepage AS lasthomepage, commenter.email AS lastemail,
       IF(commenter.displaygroupid > 0, commenter.displaygroupid, commenter.usergroupid) AS lastdisplaygroupid,
       protected.options AS protection
                       FROM thread AS thread






       LEFT JOIN vault_article AS article ON (thread.threadid = article.threadid)
LEFT JOIN user AS commenter ON (article.lastposterid = commenter.userid)
LEFT JOIN vault_protect AS protected ON (protected.targetid = 0)
                       WHERE thread.threadid = 19496;

MySQL Error   : Unknown column 'protected.targetid' in 'on clause'
Error Number  : 1054
Request Date  : Sunday, June 7th 2009 @ 08:28:38 AM
Error Date    : Sunday, June 7th 2009 @ 08:28:38 AM
Script        : http://www.blincmagazine.com/forum/39138-post1.html
Referrer      :
IP Address    : 74.6.22.121
Username      : Unregistered
Classname     : vB_Database
MySQL Version :