Need help with trainer

Well, I downloaded the trainer and it has worked fine until today when I woke up and decided to play dying light, I already attached the game folder on infinity and started game, it also says end game which means the trainer is activated, but when I use the numpad it wont work, no keybindings work and the cheats wont work

So it would be nice if any of you guys have the fix and could share it to me.

you need to use the f keys