Rover not working in Auto mode

Hello everyone,
I am actually naive to mission planner. I am using mission planner 1.3.44 and I have done all calibrations and flight modes are also working. I have tested the rover in a building and my manual mode is working fine. When I switch to AUTO mode, the rover is not moving. My cruise speed is 1 and throttle % is 50%.

My friend told me that I need to ARM the rover with GPS LOCK. However, the ARMING_REQUIRE parameter, I couldn’t find in mission planner.

Is it ARMING issue or I just need to test it out.