Problem with Google maps API refusing to load

"[email protected]" <[email protected]> Tue, 16 Jul 2019 20:28:37 +0200

Newsgroups	gmane.linux.ntop.general
Message-ID	<[email protected]>

Hello, 

I am using version v.3.9.190709 of ntopng 

And I have uploaded an API key, but I keep on having this JS error : 

Google Maps JavaScript API error: ApiNotActivatedMapError
https://developers.google.com/maps/documentation/javascript/error-messages#api-not-activated-map-error


Do you have any idea how I can try to solve this ? 


Sincerely yours.