Ok, so taking a look at your most recent post then https://www.headtrucker.com/todays-thoughts-31911-job/
There are no images on this post, and nothing is providing an og:image tag in source, probably rightfully so.
When I attempt to share it on Facebook, the result is: https://d.pr/i/17smU/5L6jyry6
Moving on to your second post: https://www.headtrucker.com/is-it-show-time-again/
There is a small image here, it’s https://i1.wp.com/www.headtrucker.com/wp-content/uploads/2016/07/CAM00394.jpg?zoom=2&resize=100%2C100 as the image was inserted to be constrained to a 100 x 100 pixel space.
Your og:image tag is provided by Yoast SEO as:
<meta property="og:image" content="https://www.headtrucker.com/wp-content/uploads/2016/07/CAM00394-100x100.jpg" />
The report from Facebook is:
Provided og:image URL, https://www.headtrucker.com/wp-content/uploads/2016/07/CAM00394-100×100.jpg was not valid because it did not meet the minimum size constraint of 200px by 200px.
screenshot: https://d.pr/i/1aHbp/4dbtyBqd
When I attempt to share it via Facebook, the result is: https://d.pr/i/JlJG/525RiD27
In this case, I recommend ensuring that images provided in the post are always inserted at least 200 x 200 pixels large. To simplify that, always use at least the Medium option when inserting an image.