no idea what trials are, or if the trainer works with trials, or if the trials is something that has an online component.
if you say the trainer wont work when you are playing "trails" to make it more challenging, then so be it.
the game has not updated since our last trainer and the trainer is still working
downloaded trainer, ran it, no problems.. trainer ran fine.
this is windows 10. trainer was created in windows 7 awhile back.
if the trainer 'wouldn't run' for this big of a title, many people would be reporting it.
likely something is blocking the trainer, etc. usually this is antivirus, antimalware, firewall, etc.