Connection Failed (Local server on windows)

Hello, I created a server (FX Server) on my computer, the server and therefore local host, I would like my friends can connect to my server that is local host, only by connecting an error message appears, here it is: https://image.noelshack.com/fichiers/2018/14/6/1523063159-probleme-fxserver.png

Do you know where the problem comes from? Knowing that I have already opened my ports on the Windows Fire (Windows 10) and on my internet box ?

Try going in the setting and turning on Local host, then join that way.