Discussione: Aiuto errore database

ecco l'errore quando accedo al forum

Database error in vBulletin 3.7.2:

Invalid SQL:
SELECT p.threadid, t.forumid FROM vbpost p LEFT JOIN vbthread t ON(t.threadid = p.threadid) WHERE p.userid = 614;

MySQL Error : Table './Sql114773_1/vbpost' is marked as crashed and last (automatic?) repair failed
Error Number : 144
Request Date : Tuesday, October 12th 2010 @ 08:27:34 PM
Error Date : Tuesday, October 12th 2010 @ 08:27:36 PM
Script : http://www.minimotorevolution.com/forum/
Referrer :
IP Address : 151.65.186.50
Username : MrKero
Classname : vb_database
MySQL Version : 5.0.91-enterprise-gpl-log

cosa può essere, e come risolverlo?
Grazie