Not working on Siteground hosting

Hello. Your plugin is a much needed function, which I’ve used successfully on our site when it’s on my local development environment. Unfortunately it doesn’t appear to be working on our live site hosted with SiteGround. I’ve deactivated all the other plugins on the site to see if that helps, but alas, no.

Do you know of a hosting specific blockage that might be occurring and that I can request the web hosts to change?