I’m getting exactly the same error as DDHORAY. My site is not public yet. I’m developing it locally. The strange thing is that the map was displaying fine in the event Event Location Details section of the event editor until I had to actually edit the event. Now it is blank with a map pin. But the site display of the published event displays the same error message:
Oops! Something went wrong.
This page didn’t load Google Maps correctly. See the JavaScript console for technical details.
Unless this is fixed quickly, I’ll have to find another event calendar because I can’t put this in front of the client.