iOS 11 64 bit update

Hi, Is there someone who might be able to udate an ios app made with OF for iOS 11. I have the build and there are missing OF files. It seems like a simple error. Please contact me Jody Zellen, jzellen@gmail.com if you might be able to help me out. Thank you. The app is Urban Rhythms:
https://itunes.apple.com/sg/app/urban-rhythms/id466124689?mt=8