problem dedicated server with steam pls help

hi, I’m creating a game with the unreal, needing a dedicated server for this game I followed this guide:

The guide works, the server is created and you can connect anyone giving you my ip so ok.

the problem is that I needed a connection with steam to get the name of every user that connects. I tried to install the plugin “Online Subsystem Steam” but after entering it no longer works the connection with the dedicated server.

Use this Rama’s tutorial on steam, you will need to add some line of code into your DefaultEngine.ini.