I believe this could most likely be caused by the Facebook application that you have created. Is it possible for you to provide us with the back end and FTP access to your site to check on this issue? Also, provide us with the Facebook and Twitter login credentials as well
I am sorry for the late reply.
I have helped you setup Twitter autoposting. It is because you missed this setting: Callback URL - You need to enter your site's URL here. Here my screenshot: http://screencast.com/t/EEATnRUiGkQ . However, when I tried to login to Facebook I got this error: http://screencast.com/t/Tbeupac7O . Can you provide us with the confirmation code so that we can help you fix this.
I have helped you reconfigure your Facebook apps and now it is working correctly. Here my screenshot: http://screencast.com/t/7YLCbKA8D4fB . Actually you've missed to set these settings App Domains, Platform, Deauthorize Callback URL and Valid OAuth redirect URIs. Can you verify this for me and see if this does resolve your issue? Looking forward to hear from you again.
You're welcome. Glad to hear your issue have been resolved.
If you have anymore question, please don't hesitate to ask us and please create a new ticket. I will mark this ticket as resolved.