CSS file not loading | WordPress.org

Building this website and suddenly I have noticed that sometimes for this particular tab here lodes properly in the browser(chrome/firefox) but when I refresh then it just shows plain text look like a CSS file is not loading properly and after sometime issue fixes automatically and after the refresh, it comes back.
I am using LiteSpeed and Cloudflare but have enabled development mode in both and tried purged all.

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

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