Featured image not appearing on post

Hello guys,

None of the featured images on the posts I upload are showing.

Does anyone know why this might be?

Here’s the link to one of the posts – as you can see the featured image on the left hand side does not show in the post. https://www.captive-media.co.uk/2016/01/the-betsafe-rugby-challenge/

We are currently running the theme called Striking. Could this have anything to do with it?

Any help would be much appreciated.

Thanks!