problema databse

ciao ragazzi vi chiedo un aiuto quando entro nel forum mi compare questo errore:

Database error in vBulletin 3.7.1:

Invalid SQL:

SELECT * FROM user FORCE INDEX (lastpost)
WHERE lastpost > 1225580400 ORDER BY username;

MySQL Error : Key 'lastpost' doesn't exist in table 'user'
Error Number : 1176
Request Date : Sunday, November 2nd 2008 @ 12:48:26 PM
Error Date : Sunday, November 2nd 2008 @ 12:48:26 PM
Script : http://console.maxinetwork.org/forum/index.php
Referrer : http://console.maxinetwork.org/forum...ex.php?do=head
IP Address : 80.104.115.49
Username : jesse1988
Classname : vB_Database
MySQL Version : 5.0.51a-community


ma nel pannello admin riesco ad entrare tranquillamente hel please

a me non compare