White Screen Lock up on Apple I-pod 7 touch

I really enjoyed the mobile app when it first rolled out, as all the scout’s achievements, awards, and activities were held in a commonplace on a mobile device. Young parents could easily update a hike, camp, or conservation hours and it would be added to the pack.

I have not been able to get into the app in months. After I click on the app, I get a loading then it switches to a white screen and stops. I tried rebooting but no luck.