Integrating GCalendari

Hi,
i want to integrate Gcal with OS Booking Service. I uploaded Zend into the root. when I make a reservation an error page is displayed that says BAD AUTHENTIFICATION. On my Google Account they show me a warning for unauthorized access due to an application. I confirmed that it was me. they wrote that they are going to show this alert for the next 2 weeks. Any idea how to handle this?
I did not enter a calendar ID as you wrote in an other topic.
best regards,
stefan

Hi,
Can you please submit ticket and send your site url with super admin, so i can check the issue for you.
Thanks
Dam

I am also having this exact problem, can you help please? I'm positive all the information entered is correct.

Hi Jason,
Google calendar may refuse the access from several hosting, so please send your site information with super admin acc, ftp account to damdt@joomservices.com. I will check the issue for you
Thanks
Dam