Can’t Generate Google Leads with LeadsGorilla

The most common reason that will cause this problem is an API key that is not linked with a valid billing account.

Have you also enabled billing on Google? Although they provide free credits, this must be done in order to work. 

Also please see from video tutorials and PDF guide that there are two APIs you must enable. 

Go to API Keys > Google API Keys > and follow the video tutorial or the PDF guide.