Copter suddenly became very unstable

Please let me know if you have any advice.
I am building a quad drone with a 22” propeller & 6s.
The flight controller is a pixhawk 6c.
Today I made several test flights.
Normal flight is very stable including hovering.
But when I was testing with a large left/right rudder turn, it then became very unstable and started to dizzy.
It is around 4 minutes to 4.5 minutes before landing in the ↓ log.

What could be the cause?
By the way, it is quick tuned.
Thank you in advance.

Welcome to the comunity.

The cause is tipicaly incorrect or incomplete configuration and tuning.

How good is your english? Can you follow instructions?
If yes, install and use ArduPilot methodic configurator software. And fix it yourself fast.

If not, wait for someone else to help you.

Thanks for your reply.
I think I can manage the English since I have some translation software.
I am new to ArduPilot methodic configurator software, but I will try to use it.
Thanks for the advice.

flight log download link ↓

We need a .zip file with the files from the vehicle configuration directory.