So i tried it and it dont work for me every time i turn on trainer it crashes game so idk whats wrong did everyhting it said to do
make sure you're using right trainer version for your game version as your problem looks like you're not.
This trainer seems to have everything, but unlimited health. I was going to use it when I finished the campaign to go back and complete all the challenges, but I'm still tied down by health
If you go back to 2pages you will see Pwizz did state this:
It does work but certain things can still kill you if the hit is large enough.