Having the same problem here :/.
Haven't had any problems with other trainers.
Have you updated Windows at all recently?
Have you installed the Creators Update?
I was having trouble with a few trainers (and a couple of other programs), then I installed the Creators Update and they all work fine now.
I have noticed that I've had to Unblock downloaded files more as I seem to get corrupted extractions if I don't unblock the .rar file first.
Also, avoid putting files at the root of a drive, and if Windows Defender is running - which it usually is because it pesters you wayyyy too much if it isn't switched on - make sure it hasn't flagged any of the trainer files. I had this once, then I de-quarantined it and everything worked after that. Granted that was pre-Creators Update.
I am updated to Creators and it still hasn't fixed. I hear activated but none of the cheats are working. Something on my PC must be blocking the injection. Which is odd, because this has never happened before.
Same here. Very frustrated. I simply cannot get any of the functions to work.