Database error in vBulletin 3.7.3:

Invalid SQL:
SELECT usergroupid,avatarrevision,reputation,user.posts,u ser.usertitle,user.username,user.userid,COUNT(*) AS total FROM user AS user,post AS post WHERE usergroupid IN (Array) AND user.userid NOT IN (0) AND user.userid=post.userid AND post.dateline BETWEEN 1244655697 AND 1244742097 GROUP BY post.userid ORDER BY total DESC LIMIT 1;

MySQL Error : Unknown column 'Array' in 'where clause'
Error Number : 1054
Request Date : Thursday, June 11th 2009 @ 12:41:37 PM
Error Date : Thursday, June 11th 2009 @ 12:41:37 PM

Script : http://www.XXXXXXXXXXl.com/vb/
Referrer :
IP Address : XXXXXXXX
Username : oXXXXul
Classname : vB_Database
MySQL Version : 5.1.30