Lately, all the sites that I created and used the maps, this message is appearing
Do you know if anything has changed on google? any settings in the API?
Hello, according to this link
Google Maps requires a key for all your projects, since June 11, 2018 ;)
Party that talks about it:
Beginning June 11, 2018, you'll need to enable billing with a credit card. In addition, you'll need to have a valid API key for all projects.