What you need is this: https://jetpack.me/
It’s the new iteration of all inclusive tools for WordPress blogs. Apparently, the changeover broke the add-on, but conversion was simple:
(1) Deactivate WordPress Stats
(2) Install Jetpack and connect to your WordPress Account
(3) Visit the configuration page in your dashboard to finish out configuration choices.
(4) Done.
Aside – this is already covered in another post here:
https://www.ads-software.com/support/topic/your-wordpresscom-account-is-not-authorized-to-view-the-stats-of-this-blog?replies=66
My post was an unfortunate duplicate.