Close button not working

Hi,
I had the popup maker working with a close button at the bottom of the content, rather than using the top left close button. I hide the top left close button. But since the updates a few days ago, the close button is not working any longer. I tried adding the shortcode: [popup_close tag=”button” classes=”extra-button-class”]X[/popup_close]. The button shows up, but nothing happens when you click it. It doesn’t close the popup. I don’t get any JS errors.

On this page: https://www.flyedirect.com/about/ scroll to the bottom of the page and click the red circle with Menu in the center. It opens the popup. At the bottom of the popup is a white circle with an X which used to close the popup, but not any longer. What do I need to do in order to get the close button shortcode to work now?

We have updated to 1.7.12 and still not working

Thank you.

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