The altitude of AHR is much greater than barometer altitude and the GPS altitude ?

Hello,Friends!I have a problem during the flight,And this problem has appeared many times.
The altitude of AHR is much greater than barometer altitude and the GPS altitude ?
I don’t know why.I hope someone can help me.Thanks!

Log Addr:https://drive.google.com/file/d/1OHq1Hkn1UOGDMzCmY5rofCJvARou_a5o/view?usp=sharing