No video of the second participant

Hi,

Installedthe following plugins- picture0
The fileconfig.js,useWebsoketsparameterset false.Geta blank page- picture 1
The fileconfig.js,useWebsoketsparameteris settrue.Get a black screenat the secondparticipant- picture 2
At the same timethe conferencecreatedtwo new membersare not included inthe list of users- picture 3

Whatam I doing wrong?