Hello, @Krishan,
Well, I have checked your site by activating the plugin and deactivating the plugin in both ways the button you said does not appear and the site appears just fine. The images have no issue. Check the videos I recorded for you: (While the plugin activated “ https://streamable.com/715trr ”) and (While the plugin is deactivated “ https://streamable.com/aw9slj ”) as you can see in these videos there is nothing like you explained.
So again I am requesting you to please try to clear the complete cache and check back.
Regards 8Themes Team.