If the user raises a request for a particular page not available, then
You asked for publishing your content, but maybe there are a lot of other content in the publishing queue and your content is going to be treated soon.
The publishing queue displays the list of all elements currently published.
To view the publishing queue go to the "Manage" ribbon toolbar, then press "Publishing queue":

Then press "Show tasks" to display the list of items you asked for publishing & check if everything is having the "Success" status.

If some "Waiting for..." or "Rendering" appears, just wait a bit more, it is going to be treated.
Reference ticket : https://sbs-support.solvay.com/helpdesk/tickets/2593914