2019-09-17 16:54:49,565 - Changing monitoring state from "Offline" to "Error: Connection error, see Terminal tab"
2019-09-17 16:54:49,574 - Unexpected error while connecting to serial port: /dev/ttyACM0 IOError: '[Errno 2] No such file or directory: '/home/pi/.octoprint/data/GPX/gpx.ini'' @ comm.py:_openSerial:2478 (hook GPX)