Hey @MadCalf8881. 
REPPiN’s trainer is outdated and will not work with the latest game version, which is why @STiNGERR here released a new one.
See here: Dying Light Cheats and Trainer for Steam.
But if you want to check out the notes on REPPiN’s trainer, just search for the game in the WeMod desktop app, click the search result and select the one made by REPPiN. Screenshot is in the link above.