Why does the helicopter rc8 automatically shut down Use HereLink remote control

I use loiter to land after flying Please check it for me, thank you
param and log file
https://drive.google.com/file/d/1dcwc4gEt1qfPMPjVRfqww2oDbmWp2DXg/view?usp=sharing

https://discuss.ardupilot.org/t/why-does-the-helicopter-rc8-automatically-shut-down/68251

@blue0827ww. No need to start a new topic just to call attention to your issue. You can just post again to the existing topic to see if anyone was able to look at your data.

Ok thanks for your reminder