Forum SQL error from RSS feed
 

I upgraded to VBB 4.20 over the weekend.

My in box is getting filled with
Quote:
Database error in vBulletin 4.2.0:

Invalid SQL:

SELECT data, expires, locktime, serialized
FROM cache
WHERE cacheid = '';

MySQL Error :
Error Number :
Request Date : Monday, February 11th 2013 @ 09:23:44 AM
Error Date : Monday, February 11th 2013 @ 09:23:44 AM
Script : http://www.3sgto.org/external.php?type=RSS2&forumids=2
Referrer :
IP Address : #.#.#.#
Username : Unregistered
Classname : vB_Database
MySQL Version :

If I pull that url up in a browser I see:
Quote:
XML Parsing Error: no element found
Location: http://www.3sgto.org/external.php?type=RSS2&forumids=2
Line Number 1, Column 1:
^

Forum 2 is a valid forum http://www.3sgto.org/f2/

Suggestions?