Thank you for your free plugin!

I installed the plugin mainly for the "invite to comment" bubble but it won't appear on Divi Wordpress. 

Yes, I have
1) Refreshed the page several times
2) Purged all caches as well.
3) Tried CSS from your answer to another question. This one from here: 

This is the link to my site which runs on Divi 7.2 and Wordpress 5.6.2. 

Looking forward to your help
LG

div#wpd-bubble-wrapper {
    display: block !important;
    z-index: 111111111111 !important;
    left: 25px !important;
}