vBulletin Database Error

[al_313_al]

hi i keep receiving emails saying there is a database error

this is what is wriiten in the email:


> Database error in vBulletin 3.7.4:
>
> Invalid SQL:
> SELECT COUNT(threadid) AS total FROM thread WHERE postuserid=;
>
> 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 : Wednesday, November 26th 2008 @ 11:11:59 PM
> Error Date : Wednesday, November 26th 2008 @ 11:11:59 PM
> Script : http://www.mysite.com/vb/showthread.php?t=13146
> Referrer :
> IP Address :


i dont understand whats wrong exactly



i hope someone can tell me what to do

cheers

[Lynne]

That query looks like it's from a modification (at least it's not in 3.7.3 that I can find). Try disabling your plugins and see if you still get the error:
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

define('DISABLE_HOOKS', true); 

[al_313_al]

i also have a problem with the forum style, all of the writting is in black and white, and no pictures appear

i tried changing the style to another style i have, but i still have the same problem

is someone trying to hack in?

my forum has been hacked several times
and i have just updated it


can anyone help?

[al_313_al]

That query looks like it's from a modification (at least it's not in 3.7.3 that I can find). Try disabling your plugins and see if you still get the error:
Note: To temporarily disable the plugin system, edit config.php and add this line right under <?php

define('DISABLE_HOOKS', true); 

thanks a million