Getting UORB in nsh but not in agent side ROS2

How can I get, this code is written for the datas coming from controller? Even if I tried it and nothing displayed in terminal after ros2 topic echo /fmu/sensor_combined/out
And My GPS is not blinking green in outdoor and my hdop v dop are also 100.0 which is bad for me, does it cause RC calibration, because I didn’t do that yet. QGC always gives me that error.