"Pages not found" and profile select blank

Hello,

I am attempting to setup the Google Analytics Report module.

I've had a colleague authenticate the API and create the project.

My correct Google account with Analytics access has the API approved.

Issues:

in the configuration, the "Reports profile" drop down menu is blank.

In the Google Analytics Summary (where the report should display) I get three "pages not found)

(see screenshots).

400. That’s an error.

Error: redirect_uri_mismatch

The redirect URI in the request, https://powr-369-portlandor.pantheonsite.io/admin/config/services/google..., does not match the ones authorized for the OAuth client. To update the authorized redirect URIs, visit: https://console.developers.google.com/apis/credentials/oauthclient/76600...