Try going to your Control Panel>Programs then find Feral-Heart. Click it and remove the program, then go to downloads and download Feral-Heart setup. (If you have FH+, uninstall FH+ and download FH Setup.. Or, this may be a hacker. The thing that I would do is uninstall FH and re-download FH setup, then PM a staff member the trollers name so they could be taken care of. Hope this helped!
-Anna