err:crash_check-1

I was testing the remote control signal distance.However, in the end, I didn’t know why the flight control suddenly locked up and the plane fell.

Why is there such a big deviation?
thank you very much!

I don’t speak English, I use the translation software, please forgive me.very sorry。

px4v3 V3.5.3

bin and tlog download
https://pan.baidu.com/s/14zQGkpR1qv_yjZTorAuKFA