Please do not fly in areas where flying is restricted. Many areas near airports are no-fly zones. In no-fly zones, DBUS1 uses Geo-fencing technology which will not allow the drone to fly while using the GPS positioning.
The Aircraft Status Indicator will be show yellow flashing. The app will alert you that you are near a no-fly zone.
Please check: https://www.airmap.com/airmap-for-drones/ for areas which will allow drone flights.