Copter is landing and Planner crashes when I open the log

Hi! This is my first post on this forum, but I’ve been reading it a while. I’m pretty new to all of this. I have a quadcopter that I’ve been working on, and today during a test flight after completely formatting and resetting everything, the copter landed randomly. In addition, APM Planner crashes whenever I try to open the log. I have attached the log, and a screenshot of the live data graph generated while flying. You can clearly see the LAND command was initiated.

  1. Why was the land command initiated?
  2. How can I fix this so it doesn’t land by itself again?
  3. How can I fix APM Planner 2 so it doesn’t crash when I try to open the log?

Thanks for the help,
Andrew Austin

The land was trigger as your battery level triggered a battery fail safe event. It fell below 3.3V*per cell

We will fix the crash in AP2 as well

*i’m not sure the exact value you have set, I’ll need to look at the Params for that