Google Map Api

After generating the google map api as per the instruction (https://kriesi.at/documentation/enfold/google-map/#how-to-register-a-google-maps-api-key)

I am still getting errors.

Check API Key
Could not connect to Google Maps with this API Key.
Troubleshooting:
Check if you typed the key correctly.
If you use the restriction setting on Google try to remove that, wait a few minutes for google to apply your changes and then check again if the key works here. If it does, you probably have a syntax error in your referrer url
If none of this helps: deactivate all plugins and then check if the API works by using the button above. If thats the case then one of your plugins is interfering.

Do you have an updated guide ?
Please help.