TypeError: cannot unpack non-iterable NoneType object

● cul2mqtt.service - CUL2MQTT

 Loaded: loaded (/lib/systemd/system/cul2mqtt.service; enabled; vendor preset: enabled)
 Active: active (running) since Thu 2023-04-20 12:59:02 CEST; 1 weeks 6 days ago
 Main PID: 1850863 (cul2mqtt.py)
  Tasks: 1 (limit: 38163)
 Memory: 27.8M
    CPU: 10min 38.683s
 CGroup: /system.slice/cul2mqtt.service
         └─1850863 /usr/bin/python3 -u /home/pi/cul2mqtt/cul2mqtt.py

May 03 14:41:11 pve cul2mqtt.py[1850863]: self._handle_on_message(message)

May 03 14:41:11 pve cul2mqtt.py[1850863]: File "/home/pi/.local/lib/python3.9/site-packages/paho/mqtt/client.py", line 3570, in _handle_on_message

May 03 14:41:11 pve cul2mqtt.py[1850863]: on_message(self, self._userdata, message)

May 03 14:41:11 pve cul2mqtt.py[1850863]: File "/home/pi/cul2mqtt/cul2mqtt.py", line 320, in on_message

May 03 14:41:11 pve cul2mqtt.py[1850863]: cul_received(payload, "MQTT") # to lower case as MQTT CUL via Tasmota SerialBridge with Rule changes output to all uppercase

May 03 14:41:11 pve cul2mqtt.py[1850863]: File "/home/pi/cul2mqtt/cul2mqtt.py", line 610, in cul_received

May 03 14:41:11 pve cul2mqtt.py[1850863]: parseRXCode(inCmd, source_cul)# May 03 14:41:11 pve cul2mqtt.py[1850863]: File "/home/pi/cul2mqtt/cul2mqtt.py", line 434, in parseRXCode

May 03 14:41:11 pve cul2mqtt.py[1850863]: receivedForDevice, receivedCmnd = decodeInterTechnoRX(rx_code_stripped)

May 03 14:41:11 pve cul2mqtt.py[1850863]: TypeError: cannot unpack non-iterable NoneType object

#1 TypeError: cannot unpack non-iterable NoneType object