Pixhawk 3.2.1 Octo crash :/

Can you analyze my crash log ? I do not know what went wrong. It just fell.
It’s octo Tartot T18 with Pixhawk 3.2.1.

http://www41.zippyshare.com/v/YwVu9ZZx/file.html

your .log just end, most likely a power failure.