You should have installed the FBI app already, just use the update function on the fbi installer menu. It should install updated fbi on the system. (In this case you should have 2) Then you don't need to have fbi installer injected into the H&S anymore cause it already exist without that form.
Hey thanks for your help managed to update to Luma3ds and updated to latest FBI as well. I can download most CIAs except this one for now..I tried multiple pokemon moon CIAs to no avail...any ideas??