The Insert Header and Footer plugin doesn’t do anything useful. As far as the footer is concerned, all the plugin does is put whatever you give it somewhere before the </body> tag. That is almost, but not quite, completely unlike the footer.
I found the layout.php file in the Footer folder you mentioned. That file has the <footer> </footer>. I put the script in there and it worked. So, thank you very, very, very, very much. 🙂
Sorry. I’m an idiot. I forgot I’m using a page management plugin. Among other things, it displays the status (Online, Private, Offline) and has an “Unpublish” option that changes the official WordPress status from “Published” to “Draft” but displays the status as “Offline” rather than “Draft”.
My apologies. I just found the Labels Edit add-on for Profile Builder that does exactly what I need.