Help me find crash cause

Hello,

Today when i finally finished my talon and first flight ended in a crash. I was really suprised because my plane was flying fine for few minutes i would say like a dream but then it suddenly start nose diving and i couldn’t even pull it out from this nose dive. I review logs but i didn’t find any errors in general but pitch desired and pitch seems really odd. Could u guys please review it and tell me what actually happend?

Using Arduplane 3.9.10 on pixhawk 2.4.8 hardware

Posting log on google drive as i can’t attach it here even it’s small.

Atleast can anyone tell me why my pitch is raising when i’m actually falling down? What’s the cause of such bad readings?