For any of the BMLT products to work you must have a valid Google API Key. This key can be acquired from Google here.

To get a key you must open an account from the link above and fund it with a Credit/Debit Card. Google does not charge for the first $200 of usage and we have not heard of a service body going over this limit using these BMLT applications.

Make sure the key has Google Maps Geocoding API and Google Maps JavaScript API enabled for WordPress plugins and BMLT Server. On a Yap instance you will need both of the previous APIs and the Time Zone API also for a total of three.