Refresh Needed After Save?

I am adding a live chat widget with some pretty basic code to my WordPress site via the Head, Footer, and Post Injections plugin. I’ve done some experimenting and when I add the code for the widget (in the BEFORE THE CLOSING TAG (FOOTER) section), hit save, and then view my site (kafene.com) while logged into WordPress I see the widget there as expected. However, when I try viewing my site in incognito mode or not logged in, the widget does not show up.

Do I need to do anything beyond just hitting Save to make sure the changes get pushed to the site? Thanks!

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