Hi admin, I have done exactly that in my website but still I get this error in my firebug console:

"Google Maps API error: MissingKeyMapError developers.google.com/maps/documentation/javascript/error-messages#missing-key-map-error" js:34:3

"Google Maps API warning: NoApiKeys developers.google.com/maps/documentation/javascript/error-messages#no-api-keys" util.js:222:12

"Google Maps API warning: SensorNotRequired developers.google.com/maps/documentation/javascript/error-messages#sensor-not-required"

Am I missing something?

Dear ecobiz

Please add your key for our module.
The first the the layout that you are using in our module in the advanced tab: if it is the default layout
go to the layout default in our template: /html/mod_sj_contact_ajax/default.php
Find the the code about script googla maps like below:
eg:
<script async defer src="maps.googleapis.com/maps/api/js?key=AIzaSyCQWWXmpIaE1c5jU5bOPh1YNkiD3L6m_NQ&callback=initMap"
type="text/javascript"></script>

=> change to:

<script src="maps.googleapis.com/maps/api/js?key=your_API-key"></script>

then change the your_API-key in the line code above.

eg:
<script type="text/javascript" src="maps.googleapis.com/maps/api/js?key=AIzaSyBaeYfTIyvWkCMqvtMqigOkho69kiL3QUY"></script>

Please get your api key here: developers.google.com/maps/documentation/javascript/get-api-key

if it doesn't work, please send us the information of your site in the box for the admin to check directly?

thanks