What Happened? – Gas Cubby FREE - Fuel Economy & Service Log Review

This app was great tracking gas and services, but as of April 23, 2015, I can no longer enter any mileage or gas price. All I see is a black screen. I've turned my phone on and off and have even updated to the new iOS, but the problem still persists. Please fix!
Review by Mikarin12 on Gas Cubby FREE - Fuel Economy & Service Log.