There's probably the same reasons as many others had so you can try a few things.
-Reset Home, Go home
-Change Rendering modes for the game and restart it for it to take effect
-Install the game on another location than it gives you(Try to make your own folder on the C:\ drive called "FeralHeartplus" or whatever, and then install. "C:\Feralheartplus".
Problems still remains? Obtain a new installer and do the Installation thingy from above.
If that fails, well.. ask TLK4EVER on DA.