Over the years, Facebook has grown and evolved - and platforms that integrate with it like ShortStack have had to grow and evolve right along with them.
Recently Facebook has rolled out its "New Facebook Page Experience," and changes have been made that prevent third-party sites like ours from publishing new tabs on Facebook Pages.
With this in mind, publishing to Facebook using ShortStack is being deprecated due to a lack of support from Facebook. We apologize for any inconvenience.