There's a problem with the "Remove featured image" link in my posts. I want to set a featured image. I go to edit my post and it says "Remove featured image" (even though I've never set a featured image).
When I click the "Remove featured image" link nothing happens. This doesn't happen on all my posts. Only the posts starting on page 3. For example, "Ed-2: A Robot that Inspires", "Chief Innovation Officer of Massachusetts Wants Your Help", and "How To Keep Your Blog Safe and Secure".
I want all my posts to have a featured image before you click into them. Like my home page (with the 5 circular pictures).
My website is: