Beginning June 11, no more free API key for Google Maps (now Google Maps Platform) if you don't provide a credit card.
A lot of custom Google maps that have been created over the years will likely no longer work.
Time to use #leaflet and #openstreetmap
https://leafletjs.com/
https://www.openstreetmap.org/about
https://cloud.google.com/maps-platform/pricing/sheet/