Portfolio items not working

I reference recent portfolio items on the home page.
https://www.liefkarson.com/

Here is the code snippet.
[portfolio category=”” order=”DESC” navigation=”no” pagination=”yes” view_all=”no” height=”150px” per_page=”3″ columns=”3″ masonry=”yes” fluid_layout=”yes” layout_style=”1″ show_title=”yes” show_categories=”no” show_link_button=”no” show_popup_button=”no” animate_filter=”yes”]

It worked a few weeks back, but now does not work.
I get a 404 error if I click any of the images displayed, and the pagination below does not work at all. Help?