I guess literally i've received reply nearly 24 hours before, Can you please let us know what is the issue? In case if you can let us know the file which is causing the issue?
Unfortunately no i'm not able to find the issue thats causing this, however its definitely a conflict with the theme.
It seems to be blocking the request to the Google API so the key can validate. I would recommend having your theme devs have a look at this to see what is happening.
Please refer the below page link, I have used short-code to display the map. Map is not working. hidden link
Here is my shortcode:
[wpv-map-marker map_id='map-15' marker_id='marker-36' address='1207 River Bay Rd, Annapolis, MD 21409, USA' marker_title='1207 & 1209 River Bay Rd, Annapolis MD 21409' marker_icon='//www.ameristarhomes.com/wp-content/plugins/toolset-maps/resources/images/markers/Home.png']1207 & 1209 River Bay Rd, Annapolis MD 21409[/wpv-map-marker]