Doesn't seem to authenticate

Hi,

This plugin is new to me. I clicked “Authenticate with your Google account”, and the first time around I did not see a code, so I clicked “Save authentication code” with the field blank.

Then I did it again, got the code, entered it and clicked Save Code again.

However, I see at the top “There were no changes to save, please try again.”

I uninstalled and reinstalled, got the same thing.

What can I do to fix this issue?

https://wordpress.org/plugins/google-analytics-for-wordpress/