Crash while landing [solved: motor/ESC failure]

The drone just went off, once it landed. The flight controller is currently off , it a CUAV v5.
This is the link to the file and the video

The drive link is access controlled. Remove that for help.

Sorry for the access restriction.

Looks like motor failure or battery failure. But I only looked at the video, not the log.

Can you please take a look at the log

Motor 4 has failed at the last instant. The battery seems to be fine. Check the motor and ESC for connectivity and run a bench test.

@kofi_owusu I advise you to use