no featured image when i post?

Hi there, When i post with wordpress the featured image does not show up in facebook? The featured image has been added to the post normally
the link to the face book post is https://www.facebook.com/thomaswmorley/posts/594888520583317?notif_t=like

This is happening all the time now how can it be solved ?

Regards

Thomas

[Moderator Note: No bumping. If it’s that urgent, consider hiring someone instead.]