404 Page Not Found on FB

Topics: ASP.NET 2.0, Business Logic Layer, Controls, Themes
May 5 at 6:09 AM
Edited May 5 at 6:11 AM
This is happening on more than one blog I created. Version 2.0.0.36.

Instead of a preview image, a bordered image square appears when posting URL of new post on a FB page with "404 Page Not Found". The link itself is working.

Any ideas on why this is happening for different BlogEngine blogs?