Feral Heart

So, I logged onto this account earlier today, and everything was going smoothly. Then, I got disconnected from the server and now every time I try to log onto any character with this account, I get in but then it gives me a message saying 'FeralHeart.exe has stopped working.' I've logged onto a different account, and everything is fine on there. Is there any way I can get this problem fixed?

Thank you in advance!
~Nickel