Hi Anthony Just another user, however if your server was on it should show in the top menu bar. One would expect that the server is set to open on start so a restart of your computer my fix that.
However I would initially try clicking the “Try another Server” link on the screen. It may give you the option to select and open the Server on you Mac. If it does, ensure you right click the icon on the top menu bar and set it to open at start up.
Trust this helps.