Is there some jQuery conflict here?

Is there some jQuery conflict here?

I'm customizing a wordpress theme called Accordium, and I have decided to add infinite scroll to it using a wordpress plugin called pbd-ajax-load-posts. In the theme, when you click on a post in archive view, an accordian animation plays by standard. The problem is, the plugin fails to render the default accordion style of posts in the archive when you click on Load More Posts [farthest bottom, in Persian] and shows it like when a post is clicked, leaving it with a fixed open accordian.

On my site, it seems that it only shows class="pk_entry", rather than the entire class="pk_post", but I might be mistaken. It seems to me that there should be a jQuery or PHP conflict, but you know I'm no professional. You can see my site at

etrewp.ir/ezdevaj.ma