Google has retired Universal Analytics. Please update your tracking to the GA4 ID.
Google Analytics is available on the Enterprise and Agency Plans.
To integrate Google’s marketing and demographics analytics, create a new property, or find your existing Universal Analytics tracking ID.
The Universal Analytics tracking ID starts with UA:
Copy the Tracking ID, and paste it into the Google Analytics Tracking ID field in your Mango account under Analytics > Google Analytics to start tracking your map visitors.