Error in connecting facebook page to zoho campaigns

Good morning everybody, I'm setting my new Zoho one account and at moment I can't follow becouse the platform doesn't connect with Facebook. I sent and email to Zoho support but no any replay. This is what I see when I try to connect.

Oops! Error found

Our server can not find the page you requested. You might have typed the link incorrectly or used an outdated link. Please check the link once again.

If the error still persists, you can contact us at: support@zohomarketinghub.com.

Anybody has the same problem? aAnybody who already solved?
many thanks for helping