Hassio + shelly1 via mosquito

hello, I’m trying to manage a Shelly1 with Homeassistant via MQTT. Following all steps, I have: 1. MQTT Integration: without elements connected - 2 MQTT hassio Add-on: [14:18:05] INFO: Setup mosquitto configuration
[14:18:05] WARNING: SSL not enabled - No valid certs found!
[14:18:05] INFO: No local user available
[14:18:05] INFO: Initialize system configuration.
Sorry, but I don’t know what about.
Thankyou all.