Can’t power off

Plugged in my Dekunu to charge while driving. Ascended to 1100 MSL. Dekunu registers the climb. Now I can’t turn it off or zero it.

What happens when you go to System -> Power off?

I couldn’t get access to the system. Ultimately the power died and when I restarted it, it asked me if I had landed or was still on a jump. Obviously I opted to be on the ground and started all over again. I don’t know why it wouldn’t let me access the system. I tried to reset it several times but it only reset to the 1,100 ft