I can post thread but not poll.. giving me script error message

I can post threads but not poll.. giving me this error message below.. any clue?

Database error in vBulletin 2.2.9:

Invalid SQL: UPDATE thread SET firstpostid = '76' WHERE threadid = '40'
mysql error: Unknown column 'firstpostid' in 'field list'

mysql error number: 1054

Date: Thursday 13th of February 2003 02:44:30 AM
Script: http://www.apexi-us.com/forum/forum/newthread.php
Referer: http://www.apexi-us.com/forum/newth...read&forumid=24


Realized i have no /forum/forum
how do i change that ?
WRONG LINK.
Script: http://www.apexi-us.com/forum/forum/newthread.php

[Xenon]

you have made an error while installing a hack....

there is no field firstpostid in table thread.

run the required query of the special hack...

[JasonWilson34]

so what is solution would be?

[Xenon]

the solution is installe the hack correctly or remove it completly..