After restoring my iPhone some apps don't work?

So today i got the iPhone 6, i backed up my iPhone 5 then restored my iPhone 6, i had all my data, pictures and everything, but i had this one music app called musify, every time i try to search with it, it gives me a message that says "Some error occurred. Please check your internet connection" but i have a good internet connection, i tried rebooting my iPhone by pressing the power and home button together, that didn't work, i tried deleting the musify app and re-installing but that didn't work either, I really liked that app and i want to continue using it, any idea how to fix it?

I have the same problem. When going back to the description of the app, it says it only has full support up until the iPhone 5s. Probably isn't out for the 6 yet!