In order for your maps view to work, you need a Google Maps API Key. How to get one is described here.

You need a working Google maps API key from google for this module. How to get one is described here.
This is only relevant if you plan to use the maps option of the module.

  1. Go to https://developers.google.com/maps/documentation/javascript/get-api-key and follow the steps. 
    You need to add billing details!
  2. Create a project
  3. Get your credentials (this is the code you have to enter for the module to work)
  4. Once you have this, add the following API's to the credentials or the module will not work:
    - Geocoding API
    - Maps Javascript API
  5. Once this is setup, it should work. 
  6. Copy the code to the API field in the module
  7. Optionally you could restrict your project, to certain websites. I would advise you to do so.