Hello, and welcome back to FeralHeart! The problem you're encountering can be solved by following this link here and replacing everything in you're FeralHeart folder with the new files in the newly downloaded folder, and it will solve the problem! ^^
Welcome! I remember first signing up for FeralHeart and playing for....a very looooong time. Like, stay up all night and goof off. I made some of my closest friends here!