The redirect URI in the request, http://theproductmart.com/google/callback, does not match the ones authorized for the OAuth client. To update the authorized redirect URIs, visit: https://console.developers.google.com/apis/credentials/oauthclient/934498109656-8kituuh7mv4a8r02237sp5d9n57odsn6.apps.googleusercontent.com?project=934498109656