2 "error": "SerialException: device reports readiness to read but returned no data (device disconnected or multiple access on port?)",
4 "averagePrintTime": null,
5 "estimatedPrintTime": null,
15 "lastPrintTime": null,
22 "printTimeLeft": null,
23 "printTimeLeftOrigin": null
25 "state": "Offline after error"