Im new - unable to take off on stabilize or lotier

Hi good morning I’m new to the drone scene and I wanted to start with a big drone so I purchased a Y6 from 3D robotics I calibrated the drone but when I try to take off the drone flies for a short time then it losses power ( (thrust )and lans or in my case i crash the drone .
Need you help to understand my mistakes I help me to get of the ground once and for all. Thank you all for your help.
Log bin file

The logs seem to match what the copter is doing. Throttle just drops down and the copter crashes. Maybe an issue with the throttle. Maybe take the props off and just try running the motors with no props and see what happens.

Mik