Make sure you have:
Registered a Google Place and associated it with your website (if not, you can do it here: https://www.google.com/business),
In Nightwatch, you entered the exact place name in "Google Place" in the URL's configuration:
Click here to check this article out for steps to configure your local pack settings.
Additionally, you may find our Ultimate Guide to Local Tracking helpful.
If you are experiencing any further troubles, please reach out to us via in-app chat at the bottom-right corner or email us at [email protected], and we will help you out.