Hi Sylvain,
The internal EMS HTTP server (EvoHTTP) was depricated in release 1.6.1. The EvoStream installers now install Apache which is a much more robust solution. You will need to leverage Apache, or another web server like NGinX, to server the HLS files.
We plan on re-integrating EvoHTTP, but that is not slated for near-term development.
Best,
Bryan