Google Maps Oops! Something went wrong (GMOSWW)

The error message "Oops! Something went wrong. This page didn't load Google Maps correctly. See the JavaScript console for technical details."

If you refer to the following documentation  https://developers.google.com/maps/documentation/javascript/adding-a-google-map , then one thing you need to pay attention to is YOUR API_KEY, so make sure YOUR API_KEY is valid, if you still don't understand, please read the documentation again carefully.

If so, please put YOUR API_KEY_here:

<script async defer
        src="https://maps.googleapis.com/maps/api/js?key=API_KEY_ANDA&callback=initMap">
</script>

If you don't know how to get YOUR API_KEY, please read carefully the following documentation  https://developers.google.com/maps/documentation/javascript/tutorials/adding-a-google-map#key

Good luck!