heya Scar! from what I know, the download for the patch on the homepage is broken, and it can be a little frustrating to hunt down a working version of the download! you can either download the file by itself or download a vanilla version of Feral Heart (meaning it has no mods installed yet) with the patch already working here! (https://feral-heart.com/smf/index.php?topic=68053.0)
if you download the patch file on it's own, all you have to do with it is place it in your C:Drive for Feral Heart, and if it asks to replace anything click yes! ;D
Glad you got this all sorted out! I'll be locking this thread as your issue is resolved. Thank you Sincerest for your help!