Giúp em về vẫn đề lỗi upgrade từ 3.8.4 lên 4.1.2

[trananhhuy11]

Êm đã làm đúng các bước, xóa mod chỉ còn mỗi mod thank và skin nhưng khi upgrade thì em nhận đc thông báo

<?xml version="1.0" encoding="windows-1252"?>
<?xml version="1.0" encoding="windows-1252"?>
<errors>
<error><![CDATA[<p>Database Error</p>

Invalid SQL:

SELECT adlocation, COUNT( * ) AS count
FROM ad
WHERE
adlocation IN ('thread_first_post_content', 'thread_last_post_content')
AND
active = 1
GROUP BY
adlocation;

Unknown column 'adlocation' in 'field list']]></error>
<error_html><![CDATA[<p>Database error in vBulletin 4.0.1</p>
<p>Invalid SQL:

SELECT adlocation, COUNT( * ) AS count
FROM ad
WHERE
adlocation IN ('thread_first_post_content', 'thread_last_post_content')
AND
active = 1
GROUP BY
adlocation;<p>
<p>
<strong>MySQL Error</strong> : Unknown column 'adlocation' in 'field list'<br />
<strong>Error Number</strong> : 1054<br />
<strong>Request Date</strong> : Wednesday, March 23rd 2011 @ 03:22:00 AM<br />
<strong>Error Date</strong> : Wednesday, March 23rd 2011 @ 03:22:01 AM<br />
<strong>Script</strong> : http://thanglongonl.com/forum/install/upgrade.php<br />
<strong>Referrer</strong> : http://thanglongonl.com/forum/install/upgrade.php<br />
<strong>Classname</strong> : vB_Database<br />
<strong>MySQL Version</strong> : 5.0.91-log<br />
</p>]]></error_html>
</errors>

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