Hey,
I actually managed to sort this out.
To prevent the body moving slightly to right when click on a pop up I added the following CSS.
html {
margin-right: 0 !important;
overflow: visible !important;
}
Also, the pop up button was causing by some conflicting JS with my caching plugin. I added the JS from the plug in folder to the “do not minify” section.
Lastly, I had copied the plug in code to my child theme, that didn’t seem to work out too well. I had to wipe clean the plugin files from the database & reinstall from fresh & now works fine.
Hope that helps!
Tom