I've downloaded the latest trainer as of now and it works fine. Its a very old trainer template which has triggered Windows Defender and blocked it. I had to manually allow it to run. Please double check your security tools.
If you double checked your security tools and you still have this problem take a look at the event viewer of Windows and search for a crash entry matching the time you started the trainer. If there is one post the details here. If there isn't one the trainer hasn't crashed but got killed by another process.