For those of you that has a problem with the Set Minimum Items, Stackable Items Editor and Non-Stackable Items Editor not working/responding at all.
When you Open Dark Souls 2, make sure it's in or change it to fullscreen on the Main Menu. Then Start the Game, Minimize(don't change it to Windowed Mode yet), Activate the trainer, Go back to the game, now you can Change the Resolution to Windowed Mode and be able to use the three things I mentioned above. At least in my case.
Note: The Non-Stackable Items Editor doesn't work for me when I stay in fullscreen(Haven't tested the Stackable yet), probably because you have to highlight the item, thus when I minimized the game, it's not highlighted anymore.
Note 2: Sometimes things won't update in your inventory whatever you just edited but, they will show up when you go to your item box.
Hope this helps anyone.