Radio Calibration Problem on Radiolink Pixhawk

Dear all,
I got a new Radiolink Pixhawk flight controller and connet my Radiolink R9DS to it .
But when i am trying to make radio lalibration on Mission Planer , i cant do it.
When i am playing pith and yaw on transmitter , i can see different reaction on screen and also error voice from pixhawk.

I cant find the problem and the reason of this error.

Please can you help?

Thanks and regards