Place <?php echo do_shortcode ('[post-views]');?>
in your single.php file wherever you would like the count to show. I am assuming that that’s how it was normally set up since you have [post-views] displaying on the front-end.
or
See if the shortcode [post-views] is in your single.php file, and remove it. Then try to use the plugin feature to display “before the content” or “after the content”.
Hope this helps.
Edit: One question; are you using a multisite structure?