I'm having the same problem than @Manasi:
You don't have permission to access /google_login on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.
I have checked and cURL is enabled (libcurl/7.21.6 OpenSSL/0.9.8r zlib/1.2.3 libidn/0.6.5).
Have you ever seen this problem?