Thread Problem, vB Error

[natecoupons]

I've been getting weird messages in my inbox, which is saying I have errors. I get generally 4-5 an hour, and it doesn't seem to be affecting the site.

Here is the error:


Database error in vBulletin 3.7.2:

Invalid SQL:
SELECT COUNT(postid) AS posts FROM post WHERE userid =;

MySQL Error : You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Error Number : 1064
Request Date : Sunday, November 29th 2009 @ 06:18:49 PM
Error Date : Sunday, November 29th 2009 @ 06:18:50 PM
Script : http://www.weusecoupons.com/upload/showthread.php?t=37430
Referrer : http://www.google.com/search?hl=en&client=safari&rls=en&q=walgreens+4+day+sale+ad+2009&aq=f&oq=&aqi=
IP Address : 67.142.161.23
Username : Unregistered
Classname : vB_Database
MySQL Version :


What is weird is that this thread exists and is perfectly fine. It's located here:
http://www.weusecoupons.com/upload/walgreens/37382-walgreens-12-2-12-5-4-day-sale-rr-deals.html

My question is why is the thread id number off??

Google is sending people to thread id 37430, BUT it's on the site as 37382. I was wondering if anyone had any reason why this was happening.

[Lynne]

That is not a default vbulletin query - it is from a modification. Disable the mod and the error should go away.

As for the thing about the threadid being off, if you look at the thread urls, it's been seoed (is that a word?) and I suspect it has something to do with that as far as why the ids are off.