ColorMag missing <meta property "og: image"

I am trying to share blog post links on Facebook from my ColorMag theme. I copy the link and paste on FB, BUT the featured image from the blog does NOT show on the post… rather just my logo. Have done EXTENSIVE research to try and fix.. everything is pointing back to ColorMag.

I have tried using the Facebook Sharing Debugger and the warnings it is giving me and what it’s saying needs to be fixed:

“Inferred Property – The ‘og:image’ property should be explicitly provided, even if a value can be inferred from other tags”

I have tested the process and look at page source, etc… of other sites I have (NOT ColorMAg) and it works perfectly, the <meta property “og: image” line is present, etc.

So how do we fix this? Seems pretty reasonable that a blog site would have the ability to share to Facebook, no?