MySQL Error

[Mr.Fidel]

Database error in vBulletin 3.7.0:

Invalid SQL:

	SELECT COUNT(*) AS count
	FROM dqd_moderation AS moderation
	INNER JOIN dqd_post AS post USING (postid)
	WHERE moderation.type='reply';

MySQL Error  : Unknown column 'postid' in 'from clause'
Error Number : 1054
Date         : Thursday, May 1st 2008 @ 08:27:40 PM
Script       : http://forum.duongquangdong.net/admincp/index.php?do=home
Referrer     : http://forum.duongquangdong.net/admincp/index.php?do=nav
IP Address   : 203.162.3.154
Username     : Mr. Viết T?nh
Classname    : vB_Database

plz, help me !