Forum error on upgrade - MySQL Error : Duplicate key name 'threadid_visible_dateline'
 

gets stuck on step 11 and then give me this. disabled all hooks already.

Quote:
Database error in vBulletin 3.8.4:

Invalid SQL:
ALTER TABLE post ADD INDEX threadid_visible_dateline (threadid*visible*dateline*userid*postid);

MySQL Error : Duplicate key name 'threadid_visible_dateline'
Error Number : -1
Request Date : Monday* December 28th 2009 @ 02:10:29 AM
Error Date : Monday* December 28th 2009 @ 02:14:39 AM
Script : http://forums.xxx.org/install/upgrade_400a1.php?step=11
Referrer : http://forums.xxx.org/install/upgrade_400a1.php?step=10
IP Address : 67.240.85.58
Username :
Classname : vB_Database
MySQL Version :