"This content isn't available at the moment
When this happens, it's usually because the owner only shared it with a small group of people or changed who can see it, or it's been deleted."
I had a look and it is a "Private Group", so I guess you'll need an invite (sorry about the confusion, I should have looked further before I mentioned it here!)
If anyone wants in, just send me a Friend Request (Mark Kirk... my profile picture is Grampy from Betty Boop, so you won't request from the wrong Mark Kirk) and I'll send you an invite.