All pop ups only on one post not working

Hi

I use Popup Maker ‘on click’ popups in my posts and pages for extra information and so use them a lot. While creating the popups for a new post, all the popups created so far were working fine, when suddenly the next moment they all stopped working. That is, when I click on their links, they don’t open. In other words, all the popup links seem to have deactivated only for this one post, all at once. The other links on the post are still working fine. And the very same popups still work fine on other pages (i.e. not posts, but pages …)

Please could you help?

Thank you

Fritz

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