Cannot access admin console after Workspace for nonprofit approval

[AZFRAG]

I recently discovered that Google offers Workspaces for nonprofits without charge, and my organization qualified. I got approval early this week, which also associated my domain to my organization's gmail account. I can log in to Google for Nonprofits just fine now, and it shows Workspace associated to my account:

However, if I click that link to get to the admin console (or else navigate to admin.google.com), there's no account present (as shown below). If I try the "add account", I'm stuck in an endless loop trying to use the same gmail account that's associated with the above login.

How do I get out of this loop?