Hi webengel
Sunny could fix the problem. I followed these instructions:
1. Visit https://console.developers.google.com and sign into your google account (you will need to sign up for a free gmail account if you don’t already have one).
2. Click Create Project and click the create button.
3. Click into your new project and select API’s on the left hand menu.
4. Turn on Web Fonts Developer API
5. Once this is enable do the following:
a. Click the Credentials menu item underneath the APIs & auth menu on the left hand site
b. Click the create new key button
c. Select browser key
d. Leave the box empty and just click create.
e. Send me the API key and I’ll put it into your website.