Drone kit Connection problem

Hello everyone
Need some help
I have been trying to connect to SITL
the connection gets established
but as soon as is try to arm the vehicle with
vehicle.armed = True
command
Error : autopilot ARMING MOTOTS
CRITICAL: Ground Start
CRITICAL : Initializing APM
Error : autopilot DISARMING MOTORS

tried hunting for solutions could not find any
Am running Windows 10
Help would be highly appreciated

Regards
Doc