Having added a new page from the admin page
If I am logged in as the user that added the page and click on the menu i get a blank page with a link to edit the page
Alternatively if I access the page as an outsider I am provided with /phpwebsite/content.php?menu=500&page_id=4 which is blank.
The database contains the information I have entered and I can see the pages when I go to edit them.
The blank is the content.php page.