adminhelp is marked as crashed
 

We've been trying to enter our admin control panel but we receive the following error. Do you have any idea about the problem?

/*************************************/
Database error in vBulletin 3.8.4:

Invalid SQL:
SELECT script* action* optionname FROM adminhelp;

MySQL Error : Table './abcd_vbulletin/adminhelp' is marked as crashed and last (automatic?) repair failed
Error Number : 144
Request Date : Saturday* December 26th 2009 @ 07:41:21 PM
Error Date : Saturday* December 26th 2009 @ 07:41:21 PM
Script : http://www.abcd.net/admincp/
Referrer :
IP Address : 12.34.56.78
Username : admin
Classname : vB_Database
MySQL Version : 5.0.85-community
/*************************************/

Previously we have restarted the server* I dont know if it's related. We have also recently installed the Patch 2 for VB 3.8.4

Thanks for your comments