list shortcode is not working

I’m using the plugin https://www.ads-software.com/plugins/user-post-collections/.

But it’s not showing the saved lists of users on the my colection of page whereas when I add the list by other method than those items are visible in pop up(check the menu item MyLibrary).

I need solution for this or if anyone else is having any other plugin with same functionalities, Than I’ll be grateful to you.

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