Missing API key for Google Maps

Maps don't show up for events. Add-ons are enabled, Google Maps plugin is configured. Here's an example event page: https://christiangays.com/events-listing/2017/07/national-womens-music-festival/

Google Developers Console has been checked, all the APIs seem to be enabled, new key had been created, that doesn't help.

Whatever key is used, it always says in a console that the key is missing.

Support access granted.