I have a problem with loading google map with the Advanced Custom Field plugin. I make everything like in the instruction on the plugin page here https://www.advancedcustomfields.com/resources/google-map.
I add google-map field in ACF, but on the page where it should be it appears for a second, and then disappears with the inscription "Oops! Something went wrong. This page didn't load Google Maps correctly. See the JavaScript console for technical details." (see the screenshot). Console says that I need to set the Google API key. I guess I also need to modify some strings in .js file from the ACF instruction, but I don't know which ones. May be someone could help.
Thank you in advance.
screenshot