Database error in vBulletin 3.8.1:
 

Database error in vBulletin 3.8.1:

Invalid SQL:

SELECT COUNT(*) AS count
FROM prince_attachment AS attachment
INNER JOIN prince_post AS post USING (postid)
WHERE attachment.visible = 0;

MySQL Error : Table './prince_pi/prince_post' is marked as crashed and should be repaired
Error Number : 145
Request Date : Tuesday, May 25th 2010 @ 11:53:58 PM
Error Date : Tuesday, May 25th 2010 @ 11:53:59 PM

MySQL Version : 5.1.30



I am getting error on my forum please any one help us .. thanks in advance .