Hi @central4allgmailcom, Looking at the response header of your website as I can see you are having issues with caching mainly for 2 reasons.
Along with this plugin you are also using the Official Cloudflare Plugin and APO. When using this plugin, you need to ensure that you have deactivated and deleted the official Cloudflare plugin from your website and also APO has been disabled inside Cloudflare dashboard.
In the response header I also see that your site is setting a few cookies on the page load using set-cookie response header. Please note that when Cloudflare sees cookies are being set on the page load and cookies are present in the response header with the set-cookie directive, Cloudflare will never cache that page thinking the cookie values might be used inside the page to dynamically show the page content. Hence the page cannot be cached.
So, if you deactivate and delete the official Cloudflare plugin from your website along with disabling APO and figure out which plugins are adding those cookies and get rid of them, I’m sure your issues will be resolved.
Home Page Response Header Screenshot Highlighting the Issues
I just closed this plugin and i opened the cloudflare plugin, because i am sorry to say it, the cloudflare plugin gives much better results in speed and in Structure in gtmetrix.