Android native app error (A connection error occurred)

I have made a Native app for our Mendix application. How I have released the web version with the Android extension, and build an Android Release app. After I start the Android app I get the error “A connection error occurred, please try again later.” If I test the app in the Android and Ios make it Native app all is working fine. May anyone know where I can find the problem?   
1 answers

You can try debugging the app using logcat so that log file is available to you.
Then you can find out in logs what exactly is the error