My apk generated with android studio doesn't work


I developed an application by means of the framework Ionic and I now wish to compile it with android studio. The application works very well on browser and on android emulator but when I compile it in release and when I install this apk on my telephone, files are not loaded.

Here is the screen which shows me my telephone (incorrect):

And here is the screen which shows me the browser and the emulator android (correct):

The lines that show me the application (screen incorrect) are supposed to be the buttons of the menu (right part of the screen).

Have you an idea of my problem?

Thanks a lot !