What does the Uncaught Error message "Invalid LatLng object: (NaN, 40.83618432283402)" mean?

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This error message means that there is an issue with the latitude and longitude values provided for a LatLng object. Specifically, the latitude value is not a number (NaN), which is causing the object to be invalid. This may be due to incorrect formatting of the coordinates or a problem with how the value is being calculated or entered.