Sharing to Facebook Displays Wrong Images and Content

Hello

When we share protected or unprotected images to Facebook, they show up with the wrong images or with the protected content message and a weird image.

For example, this page: http://hlweo.com/essentials-4-success/ is unprotected and has the same image that's in the post set as the featured image. If you share it on FB, you'll see the image that shows up.

1. I'd like to set how a protected page looks when shared as a default.
2. I'd like to make sure unprotected pages display what they are supposed to.

Could you assist?