Hello, @berry
Thank you for contacting us regarding your question.
In order to use address feature you need to enable the Geocoding Service.
Before using the Geocoding service in the Maps JavaScript API, first ensure that the Geocoding API is enabled in the Google Cloud Platform Console, in the same project you set up for the Maps JavaScript API.
To connect Geocoding API, please use the instructions from Google https://developers.google.com/maps/documentation/javascript/get-api-key
Best regards,
https://supsystic.com
Ole