Mission planner Fence Breach question

Hi guys.
We are trying to connect the aircraft to the mission planner to correct acceleration and compasse, but the RTK gps signal is not caught as the message Fence break appears in the status window. What’s the reason for this error? It’s my first time seeing it. Help me.

Probably your position is outside the geofence
https://ardupilot.org/plane/docs/geofencing.html
https://ardupilot.org/copter/docs/common-geofencing-landing-page.html

Thank you for the information ^^