Hi there and thank you for your time developing this trainer.
If i run the trainer i'm getting a strange .NET error "Ungültiger Methoden Token" (means "invalid or bad method token" i think).
I'm running Win764bit german version. Running as admin an trying to install .NET 3.5 did not help. I also deactivated Firewall and Antivirus for testing and ran the trainer in a fresh Win7 VM. Same results.
In this pastebin there is the full error message with stacktrace: Link