MySQL error: mailqueue

Since using vBSEO I get this error in my email box hundreds of times a day,

Database error in vBulletin 3.0.6:

Invalid SQL:
SELECT *
FROM mailqueue
ORDER BY mailqueueid DESC
LIMIT 10
mysql error:

mysql error number:

I've never seen the error myself, but a member submitted this picture.
http://img206.imageshack.us/img206/4894/np1wx.png

Any idea what could be causing this?

Hello,

could you please send me (in PM) the full email contents (including script names).