how to view the stars on archive page?

I am trying to show the stars on the archive page where several posts are displayed with excerps. But without luck. I hope you can help me out. I love this plugin.

screenshot of my page:
https://i.snipboard.io/sJC5rx.jpg

When I integrate this piece of code, nothing happens:
<?php
echo kk_star_ratings();
?>

When I integrate this piece of code, I get string(0)””
<?php
$kk_star_rating = kk_star_ratings();
var_dump($kk_star_rating);
?>

So it seems there is no value stored.

How can I display the stars in the archive (blog post overview)?
On the single pages it works properly, so when I click on a post, I can see the star rating. That part works.