Installed but have a question re: canonical info

I installed, and I too, was expecting immediate results. I read your post and I’ll wait. However, what I saw that is interesting (and I’m a layman, I know nothing about FB developing, etc, I just want the friggin’ key image to change) is that according to the scraper info and canonical(Sp?) info, the image was set back in July 2017 and it hasn’t changed at all. I would occasionally see this image if sharing something and I’d think, okay FB is pulling this in, etc., but it never occurred to me that the image wasn’t changing. I do recall when I first set the blog up that we could put a blog post up and the featured image would appear. Now I’m wondering if any of the feature images for over 1 1/2 years have shown up. I haven’t a clue where to look or what to do.

The page I need help with: [log in to see the link]