I believe that this is an error on our side. If there are official EvoStream resources stating that, we will correct them. EvoHTTP was discontinued on normal x85/amd64 machines. It was primarily created for embedded devices where no web server was available.
For now, one needs to install a standard http server (apache,nginx/lighttpd/etc). We strongly recommend apache2 because is the most stable one. We have encountered problems with nginx/lightttpd on virtual machines, that is why we stick to apache2: