Map API issue after mapping domain

Hi There,

I recently mapped to and since doing so I get a Google Maps API error.

I have tried putting the js script with my API key in the header - the map then displays on mobile but not on desktop. I have also tried a plugin called API KEY for Google Maps as well as installing several new maps plugins. On each of those plugins I have entered the API key and I still get the error message.

This was not an issue before mapping.

Appreciate any help.