Plex is running in the background but I don't see the window

I downloaded the latest version and ran into this issue. Please help.

The server doesn’t have a window. It only has a task tray icon.
PMS_tray_icon_win10

Make sure it is present. If not, start “Plex Media Server” with your Start menu.
Then direct your web browser to http://127.0.0.1:32400/web

Then what?

Set up your server

Now it says site can’t be reached