Error getting domain name working.

The browser gets an http 522 error, and when I tried to put a "Rule" in I got a Page Rule validation failed Code: 1004
I'm not understanding so many direct addresses to test page:
https://cf01-3i7.pages.dev/
https://60f8e9ad.cf01-3i7.pages.dev
I hit "retry deployment" and rec url below.
https://9a01dbaf.cf01-3i7.pages.dev

I found "Known Issues" page at:
https://developers.cloudflare.com/pages/platform/known-issues#enabling-access-on-your-pagesdev-domain
Step 4 "Go to Settings > Enable access policy." I couldn't find this on my dashboard.
Here are some known bugs and issues with Cloudflare Pages:
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