There are a whole bunch of reasons I prefer rebuildables with 510s to pods. This is one of them. I don’t know what exact system that
device uses. Traditionally it’s electrical. The resistance coil completes the circuit and if the circuit is not complete you get an error. So: if it does use that method, the circuit isn’t completing for some reason. Dirty contacts? Contacts that don’t touch for whatever reason? Broken coil?