Yep, with those logs, connection to the box is fine 
2 questions:
- Just to be sure… in your configuration, does your MQTT Url looks exactly like that:
url: 'mqtt: //hassio.local'?
If that’s the case, you need to remove the space in the url after mqtt:
To check if the bridge is property connected and receiving messages from the MQTT broker, simply click on open/close/position on your cover within Hassio. Immediately after the click, go check the bridge logs. You need to see a message like this:
...
2021-01-27T00:29:02.871Z [String] New message on topic schellenberg/device/value/update/1223: 2
...
It indicates a new message has been received. If not, then there is an issue with the MQTT broker. In that case, download any MQTT client, for instance MQTT.fx (Windows Java Client) and test if the MQTT is working providing the same MQTT credentials.
- The second question: regarding the deviceIDs, what exact model of Rolladen are you using?