I can't see any details in the Admin Panel

When you log into the Admin Panel at the top you should see 1 Organization X Users and X Services.

If you do not see any data at the top, this is usually due to a browser restriction that is blocking the web-socket from populating the information.  See article here to correct.   

If the top panel is populated but there is no right lower panel, you must click on the organization.  In this case 'Demo Organization'.  

After you select your organization.  The rest of the controls and information populate, including control buttons in the left panel and information in the right panel.