Hello @Kenniga. 
I haven’t seen anyone else reporting this issue with the trainer elsewhere.
This issue is generally caused by a security program on your computer or network, which is interfering and blocking the trainer from either downloading from the internet or injecting into your RAM.
See here for some steps: "Wemod failed loading the cheats into your game" / "We’re having trouble downloading the cheats" - #2 by Ravenfyre