URLs to sub-pages and blog posts don't work

Hi
My site https://standrewsconsulting.com is on WP 5.4 and Enfold 4.7.4.

I have got the editor working correctly behind the scenes but none of the other pages or posts are accessible from the web:

The news page URL gives this error: The requested URL /news/ was not found on this server.
This is the same for all the other sub pages.
If I set any page to “pending review”, then I can see the content correctly when I preview the changes. However, I then cannot access the page when I publish it. This is true for new pages as well as ones generated prior to the latest version of Enfold.

Can you help?

Thanks Glen