confusing MySQL Error number 1054

[memobug]

Hi There,

We've changed servers a week or so ago. I have seen this error emailed to me twice:

Database error in vBulletin 3.0.3:
Invalid SQL:
UPDATE user
SET posts = posts + Array
WHERE userid = 0

mysql error: Unknown column 'Array' in 'field list'
mysql error number: 1054
Date: Thursday 09th of December 2004 05:00:03 PM
Script: http://
Referer:
Username: Unregistered
IP Address:

Can anyone tell me what this means? I see the scriptname is mostly blank. does that mean it is a mod like photopost or something nonVB generating the error? Does the fact that the username shows as unregistered mean anything?

Hmmm. Maybe it is that port of Ryangel's journal? It never gave this error before, but it seems to be some unnamed script somewhere.

It's confusing