Ok, I did a password reset and now the game is working perfectly now. Thanks everyone for the advice you offered!
And Tennessee, if you're still having trouble with the file, I would recommend clicking on the browser's downloads page after you get the .exe file and try opening the file. It might say something about it being untrustworthy, just ignore that and then move the file to the FeralHeart folder as normal. That's what got it to work for me. I'm using Firefox though, so it might not work depending on the browser you're using.