“Google Maps API key” is required in order to show map and geo-location. You can add your Google Maps API key under Advanced tab –> map settings of our plugin.
You can get your key under https://console.developers.google.com/flows/enableapi?apiid=maps_backend,geocoding_backend,directions_backend,distance_matrix_backend,elevation_backend&keyType=CLIENT_SIDE&reusekey=true&pli=1
Kindly make sure that the API key you have created has permission to work in the domain name you use now.
Also, you need to enable the Geocoding API in Developer Console:
The path to enable the API: