Issues Getting Shortcode to Work for Posts

I am trying to display the average star rating for a post on a post grid.

I am using the grid plugin, content views, to show posts on a category page.

Here is the page with the grid of posts

I am using the shortcode, [site_reviews_summary] for each post.

To get the shorcode into the post grid plugin, I had to create a custom field with a shortcode in it and then have that shortcode executed in the setup of the grid of posts in the content views plugin

However, the star reviews show the same star rating of 4 1/2 stars for all of the posts. Not all the posts have the same average star rating. So it seems like it is not updating correctly.

If you look at the individual posts, the avg. star rating is not 4 1/2.

I also tried using the [site_review] shortcode, but nothing showed up when I added this.

Any help sorting through this would be appreciated.

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