My forum has a bug [HELP]

[xsamuxph]

hello please need help from people who know vbulletin to tell me that you can do to fix this error

PHP Code:

Database error in vBulletin 3.8.7:

Invalid SQL:

            SELECT post.pagetext, thread.threadid, thread.title
            FROM post AS post
            LEFT JOIN thread AS thread ON (post.threadid = thread.threadid)
            WHERE post.pagetext LIKE '%[img]%[/img]%' 
            ORDER BY rand()
            LIMIT 0,10;

MySQL Error   : Got error 28 from storage engine
Error Number  : 1030
Request Date  : Thursday, July 7th 2011 @ 03:31:18 PM
Error Date    : Thursday, July 7th 2011 @ 03:31:18 PM
Script        : http://pchack.net/index.php
Referrer      : 
IP Address    : 200.84.141.233
Username      : XSaMuXPH
Classname     : vB_Database
MySQL Version : 5.1.56-log 


website : www.pchack.net/index.php

I thought it was a speedlite that you install the server, but restart the server and it was fine but only for a few minutes!

greetings and thanks!