by Marvin Saint Cyr | Apr 2, 2017 | Uncategorized | 0 comments Unable to display Facebook posts.Show errorError: Error validating application. Application has been deleted.Type: OAuthExceptionCode: 190Please refer to our Error Message Reference. Related Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.