I have a problems new version



Dear friends,
It was very good, the best app I’ve ever tested, but unfortunately, five days after performing the last update, my app does not open anymore. Opens, however, the screen becomes dark and locked. The app hangs and will not hang up any more. In PC Windows too. What happened?

Which device has the problem? I don’t know! Because, my app screen becomes dark and locked.
Device Model Name: Samsumg J7 - SM-G610M and PC Windows too
OS Version: Android 8.1.0
AppVersion: Not possible


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