I have the same problem on my site, the last two post have this error
Add Link to Facebook – Il matrimonio egualitario è costituzionale: Import comment: Facebook error: Unsupported get request. Object with ID ‘1190616300_10208324145079838’ does not exist, cannot be loaded due to missing permissions, or does not support this operation. Please read the Graph API documentation at https://developers.facebook.com/docs/graph-api @ 2016-04-20T19:18:49+00:00
