Manual popup linked to image click not working

Hi,

I am trying to use Boxzilla to hyperlink an image for a form popup (using Mailchimp forms). I have tried every variation of showing the form manually (https://kb.boxzillaplugin.com/showing-boxes-manually/) but nothing happens when I click the image.

The image I have linked is on this page: https://thebeautyofhealthyliving.com/blog/stop-dieting-and-start-finding-your-health/

Im using the Sela theme on www.remarpro.com.

Thanks in advance! ??

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