This is a limitation imposed by DJI. Typically, it means that the distance between the launch/home location and flight area is exceeding the distance allowed. You can change or disable the "Enable Maximum Range" feature in the DJI Go app under Main Controller Settings.
It may also be possible to remove this error by either:
- Rotating your flight legs so that the first waypoint is closer to your launch/home point
- Physically move your launch/home point to be closer to the flight area