[axix20xx]

I can uninstall it
but now i cant install it again and this is the error :

Database error in vBulletin 4.1.9:

Invalid SQL:

			ALTER TABLE forum
			
	ADD COLUMN vault_type INT(1) UNSIGNED NOT NULL DEFAULT '0',
	ADD COLUMN vault_options INT(10) UNSIGNED NOT NULL DEFAULT '3',
	ADD COLUMN vault_lastthread INT(11) UNSIGNED NOT NULL DEFAULT '0',
	ADD COLUMN vault_lastedit INT(11) UNSIGNED NOT NULL DEFAULT '0',
	ADD INDEX vault_type (vault_type);

MySQL Error   : Duplicate column name 'vault_type'
Error Number  : 1060
Request Date  : Sunday, April 29th 2012 @ 11:08:34 AM
Error Date    : Sunday, April 29th 2012 @ 11:08:35 AM
Script        : http://and-roid.ir/Forum/vault/install/install.php?step=2
Referrer      : http://and-roid.ir/Forum/vault/install/install.php?step=1
IP Address    : 82.99.229.131
Username      : RealUnknown
Classname     : vB_Database_MySQLi
MySQL Version : 5.6.4-m7