Error when testing cache

Hello,

I recieve the following two error when I test the cache:

Error on dynamic page (https://heyjp.dev): Seem that your website is not behind Cloudflare. If you have recently enabled the cache or it is your first test, wait about 30 seconds and try again because the changes take a few seconds for Cloudflare to propagate them on the web. If the error persists, request support for a detailed check.

Error on static resource (https://heyjp.dev/wp-content/plugins/wp-cloudflare-page-cache/assets/testcache.html): Seem that your website is not behind Cloudflare. If you have recently enabled the cache or it is your first test, wait about 30 seconds and try again because the changes take a few seconds for Cloudflare to propagate them on the web. If the error persists, request support for a detailed check.

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I’m using Cloudflare nameservers and I’ve tried uninstalling/reinstalling the plugin. Any help or suggestions would be appreciated!

The page I need help with: [log in to see the link]