I cant add media to my plex or add a server

My computer crashed so i installed plex media server on my windows 11 pro machine.

Now i cant make a server or add media. The set-up page is not starting so i am stuck. If i go to add media it says : get plex media server while i have installed one, please help.

How are you opening your web session to PMS? For a new server, it matters. See “How Do I Claim My Server” here:

In short, for your first access to a Windows-based server, you must use the Plex icon in the notification area to right-click and select “Open Plex…” This initiates the claiming process and then the setup wizard.