Mystery in today's crash. Do you help me understand why?

I can not understand the crash of today.
Note that the GPS has detached itself after contact with the ground. So it’s not the fault that caused the crash.
From how it is seen in the logs, it has lost its share and has turned upside down.
Does anyone have any idea?
Attach the log.
If it can help you understand, I can upload the video. The engines stopped suddenly.

Bin Log file:

Winrar log files: