Hello there. 
When cheats are unable to download then it is mainly due to them being blocked by an antivirus - Either one that is installed on your PC or one that is part of your network (especially if you’re on a school/college/university network).
Please follow all of the troubleshooting in this post: Wemod failed loading the cheats into your game.
Simply adding WeMod as an exception in the AV after it has already been intercepted will not recover any files the AV has deleted.
If the above doesn’t help, other possible causes are:
- Incorrect trainer for the store that you purchased the game from (ie - Using a Uplay trainer on a Uplay+ game).
- The game is cracked.
- The game or trainer is out of date.
- Additional instructions in the trainer are not being followed correctly.
Which game are you having the issue with? Where did you get that game from? And which trainer are you trying to use on it?