Inline HTML Galley plugin - XPATH not targetted correctly

I have installed and activated the Inline HTML Galley plugin and defined the Xpath of the container of the articles in single view. I grabbed the Xpath from Chrome’s inspector, which is: /html/body/main/div[1]/div/article
Instead of displaying the galley inside of that targetted container it affects the entire page, removing the header, footer, etc…

I am using OJS

Has anyone else successfully been able to target a specific container in the articles page for this to work?

Any help is greatly appreciated.