Hi, inserting our Web Fonts Developer API -key from Google Cloud Console into the Helix Ultimate settings (Advanced -> Font Settings -> Goolge Fonts API) gives the following error message:
"Method doesn't allow unregistered callers (callers without established identity). Please use API Key or other form of API consumer identity to call this API."
This key has worked well on our previous website, and is restricted to the website(s) in question. We have also tried with creating new API credentials, does not help.