It doesn't really look like a Graphic Problem. Has chu deleted any of the Feral Heart default maps? If so, you may need to download the game again.
It seems you are missing some files in your Feral Heart folder. You may need to try to re-install the game again. Make sure when you are re-install the game to get ride of your previous FH folder so it dosn't interfere with the re-downloaded folder
I just re-installed the game and nothing changed. I uninstalled it before I re-installed.