Flutter app show grey screen in release mode but works fine in debug mode Instance of 'DiagnosticsProperty'

I notice that the app works fine in debug mode but when I try build the release apk and try it on my phone the app shows a grey screen after the loading screen.

When I used HTTPS and I added all permissions.

HttpClient does not work in release mode (I/flutter (22182): Another exception was thrown: Instance of 'fr')

but it works in debug mode in flutter android