Px4 1.9.2V offboard mode, FCU: Critical navigation failure! Check sensor calibration issue

Hello,

I have been facing the below issues each time I try taking-off and land in offboard mode. I find the below issue. Note: I’m using vision based (mocap) as replacement for GPS.
Below is the error seen from log:
[ INFO] [1455208295.332556282]: HP: requesting home position
[ INFO] [1455208295.992272691]: FCU: ARMED by Arm/Disarm component command
[ INFO] [1455208296.033344931]: FCU: [logger] file: /fs/microsd/log/2016-02-11/16_31_3
[ WARN] [1455208299.710266265]: CMD: Unexpected command 176, result 0
[ INFO] [1455208300.045020408]: FCU: Takeoff detected
[ERROR] [1455208303.992145377]: FCU: Critical navigation failure! Check sensor calibra
[ INFO] [1455208305.333272044]: HP: requesting home position

Debug:
I calibrated the GPS twice but still same issue. Would appreciate your help on this.
logs: https://review.px4.io/plot_app?log=79557096-a4c5-4217-848a-c07ecb17948d
parameter configuration:https://review.px4.io/download?log=79557096-a4c5-4217-848a-c07ecb17948d&type=1

Thanks,
Scalnoor

@Jaeyoung-Lim, any idea on the above seen issue. It’s bit pretty confusing why navigation fails after takeoff any specific reason to it. Appreciate you help.