It probably means one of the following
Anton, I have been receiving messages on the device's Traccar regarding alarms, even when starting or stopping the vehicle.
alarm=powerOn ignition=true distance=417.58 totalDistance=7.135512298E7 motion=false hours=33478000
alarm=powerOff ignition=false distance=9.95 totalDistance=7.14463757E7 motion=false hours=33478000
What Anton means is that as your device does not report ignition (key turn on dashboard) there's no way to tell if it's on or off.
Richard, why do I always get paid when I start or stop the car?
I would like to know if it is possible to know how long a particular car has been running during a period selected by the user. I know that trips mark the duration of the trip, but I want a way to know how many hours the car is on even if it is parked without movement.
I click on the summary tab and the time on always stays 0h0m.