Welcome to the community @marcemgt and @CherryL101. 
First of all, please make sure your copy of the game is legitimately purchased from Steam.
- If it is from GOG, we do not have a trainer for this version yet, but you can request one in the WeMod desktop app.
- If it is cracked, again we do not have a trainer for this version and never will.
If your game is from Steam, then click the History button in the trainer, which is under the Play button, and make sure the most recent trainer in the list is selected.
Then:
- Launch the game first via Steam. Wait on the main menu for five minutes.
- Alt+tab to WeMod. Press Play.
- Alt+tab back to the game.
See if this makes any difference. 