Won’t load and open on iPhone XR iOS 13.3.1 – The Document Converter Review

Having Read this app’s reviews on App Store, I had high hopes for it. One review mentioned problem with iOS 13 on iPhone 11, but I decided to Download and try the app on my iPhone XR 13.3.1 today. When I tap the icon to load and open, I am returned instantly to home screen. Won’t even load. Any news on update that will make your app compatible with my iPhone?
Review by MissKitty99 on The Document Converter.