Google Maps fell off even in the Bitrix admin panel, how to fix it?

Question

Google Maps

Hello.
There are two sites on multisite, on different domains.
One has a hosting service domain, everything is ok with it.
And the second site without a domain registered a connection in hosts.
Google maps on it just do not work either in the admin or in the public part.
When I enter a location search query in the admin panel, I get

/**/_xdc_._nc04td && _xdc_._nc04td( {
   "error_message" : "Geocoding Service: You must use an API key to authenticate each request to Google Maps Platform APIs. For additional information, please refer to http://g.co/dev/maps-no-account  For more information on authentication and Google Maps JavaScript API services please see: https://developers.google.com/maps/documentation/javascript/get-api-key",
   "results" : [],
   "status" : "REQUEST_DENIED"
}
 )

There is an assumption that due to the lack of a domain, but I'm not sure.

Answer 1

API Key added? No.