Plugin not work – Please help

Hi,

Ive installed and activated this plugin on the WP blog. Then when I go to the sourcecode of the latest blog post I can’t see any of the plugin tags such as og:title: og:site_name og:url: etc, so I can only assume the plugin is not working right?? Ive read the forum and tried disabling and reactivating the plugin but this does not do anything. Ive also tried disabling all other plugins so its not a plugin conflict as I do use yoast. Not sure what else to try, could it be a cloudflare issue/cache issue?

Example Limitless Season 2