No camera view when using Dronedeploy

On my first fly the image from the camera was on the display, but now, i have no image from camera on my android device…
Anybody knows how to solve this issue?

Usually some of these steps should clear it up.
Recycle power on the drone and controller.
Turn your mobile device off and back on to clear out possible conflicts.
Uninstall and reinstall the app.

My screen is exactly like this screenshot
I have the plan, but i haven’t the image from drone’s camera…