online.php is not working with this last version

somebody know how to fix it? I had to disable this product in order to make it work again. :s
Database error in vBulletin 4.1.5:
Invalid SQL:
SELECT IF(userid > 0, 1, 0) as isuser, COUNT(session.userid) as online_users
, user.market_username_color,
user.market_username_glow, market_username_subscript
FROM session as session
WHERE session.lastactivity > 13*********
GROUP BY isuser;
MySQL Error : Unknown column 'user.market_username_color' in 'field list'
Error Number : 1054
Request Date : Friday, September 16th 2011 @ 12:42:29 AM
Error Date : Friday, September 16th 2011 @ 12:42:29 AM
Script :
http://www..*****..com/online.php
Referrer :
http://www.*****.com/private.php?do=newpm
IP Address : *****
Username : Stylish
Classname : vB_Database
MySQL Version : 5.1.56