Problem with MQTT publishing

[mathysyon]

Hello, I have a problem with the publication of the information of the sensors, to launch the publication I do :

python3 -m zigate.mqtt_broker --device auto --mqtt_host localhost:1883 --mqtt_username myUser --mqtt_password myPass

It works and the information is published in the topics, but after a while, there is this error that appears:

Thank you for your help