Heads up! As of June 22, 2016, Google Maps requires an API key. Prior to this date, the API key was optional with our themes. Maps will no longer work unless the key has been entered.
Setting up Your Google Maps API Key
Setp Wise here
STEP : 01
Click the link https://console.developers.google.com/apis/library
STEP : 02
STEP : 03
STEP : 04
STEP : 05
STEP : 06
Add details as added in the screen image and user this API only.
