Regression - Share button is not working at all

1. Login to CMS as admin
2. Navigate to Documents >> gettingstarted >> News >> 2011 >> select any document
3. Click on Share button and select any of the options

Expected - The document should be publishable in relevant forum (FB or Linkedin or twitter)
Actual - It is not possible to publish the document. For FB and Twitter attached exceptions are shown and for Linkedin Access Denied page is shown