Pages that I have previously published and were working fine are not now appearing on the site.
The pages still show up in the dashboard and I can see the content/code.
The page links still show up on the home page, but when you click on them you get a 404 error and no page.
The same thing happens if I try to preview a page from the dashboard - 404 error.
I have tried deleting pages and re-writing them but this hasn't worked.
I haven't changed any core code.
I'm stumped, anyone got any ideas?
Many thanks in advance.