This feature gives the opportunity to your customer to help them to set correct address.
It looks like this:
If it is not working, it is because « You have included the Google Maps API multiple times on this page. This may cause unexpected errors. »
In order to check this error, open your console in your browser and check for error (in red).
This issue comes from the fact your theme or another plugin is already using Google Maps API.
How to solve it?
- Try to deactivate all other plugin except WooCommerce and Stern taxi fare.
- Try to use another theme.