App not working. Please help!

[Macrini]

Hey. I have a BTV 9 Box with MFC app which alway worked perfectly fine. All of the sudden the app started freezing and showing a message saying "My Family Cinema is not responding. Would you like to close it?"



I tried restarting the box, changing internet connection but nothing worked. 
What should I do? Is there a way to re-install the app?

Please help!!!