Open Graph Facebook Pictures Not Always Showing

I've been customizing my articles with Open Graph Tags for several years. Lately I've had trouble with my images not always showing up on facebook. (And I've double-checked the links in my code, so I know the images are online and the links are right). This is the code I put (& then customize) at the bottom of ever article.

{SCOpenGraph title=Title}
{SCOpenGraph description=Description.}
{SCOpenGraph author=Juli Camarin}
{SCOpenGraph image=imagepath}

I've tried using the facebook Object Debugger and this is the error message I get for one of my recent articles:

Object at URL 'www.jcblog.net/romans/1/2-the-promise-of-the-gospel' of type 'article' is invalid because the given value 'Juli Camarin' for property 'article:author' could not be parsed as type 'profile'.

Which has nothing to do with the images not showing up, but I thought I ask how to fix this also.
Also, does this have anything to do with why the images aren't showing up? This particular image for this article (www.jcblog.net/romans/1/2-the-promise-of-the-gospel) didn't show up when posting to facebook... but when I debugged it, it does...

Secondly, for this article the image didn't show up so I ended up uploading the image to facebook and then putting the link what I posted, but that doesn't register the likes on this article like it would if I embedded the link rather than an image. So I missed out on the 50+ likes for the article because of how I posted it... I'm sure this is a facebook issue, but is there any fix for this? In other words, is there a way for a link on a facebook post (without the link preview) recognize the likes on the post?

Thank you for your help!
Juli

Thank you. This is helpful. At least now I know how I must always share the posts...

for the syntax: should it be this then?

{SCOpenGraph author=https://www.facebook.com/julicamarin}
and if it is, will is correctly show my name as it is now?


Thank you for your help.
Juli

I will try it, thank you!