Trying to install add-on, getting error:

[strongarm_playa]

Trying to install the TMS add-on, but for some reason im getting the following error. Help would be greatly appreciated.

But when I check my add-ons, I do not have this already installed:

 

[Jake Bunce]

		$db->query("
            ALTER TABLE xf_template ADD template_modified MEDIUMTEXT NULL  COMMENT 'TMS' AFTER template ,
            ADD template_modifications MEDIUMBLOB NULL COMMENT 'TMS' AFTER template_modified
        ");

Either another addon uses that column or TMS was previous installed. You can manually remove that column from the database.