error_widget.dart

class ErrorWidget extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: Padding(
        padding: const EdgeInsets.all(8.0),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text("Oh no! An error has occurred with the app! Please send the details over to our team"),
            MaterialButton(child: Text("Send Report"), onPressed: () => navigatorKey.currentState?.pop(), color: Colors.red,)
          ],
        ),
      ),
    );
  }
}