ERROR [-] (1) wsgi starting up on

When i am running stackstorm on containers , i see this error in st2stream container during a startup 2019-12-29 19:39:18,166 ERROR [-] (1) wsgi starting up on

Excepting this strange line, all seems ok. st2api and st2auth are starting without this strange error.
The question is if it’s something that can be ignored? How can i test st2stream component in order to make sure that it’s working correctly ? There is not enough documentation about that component and its role in the stackstorm, so it’s a little bit difficult to test it :slight_smile: