Savegame Installer Error (ret =-1)

I'm trying to load my Animal Crossing file that I edited with ACtoolkit and whenever I use Savegame Installer it says Error (ret =-1). I rlly need help fixing this and hope it is fixable, I've tried deleting Savegame Installer and re-installing it back but it gives me the same error. (Also don't recommand me using Savegame Manager cause that doesn't help)

Any help fixing this problem rlly appreciated. (Hope this is in the right forums spot)

Make sure you had an Animal Crossing save on your wii before, or else a new one can't be copied to your wii. If you have already done this, try Savegame Manager MOD.

Yes I did have a save already on.