When you attempt to visit https://www.xxxxcomau/sustainability (or a similar internal link) and receive an notification, the server is explicitly refusing to show you the page. Unlike a "404 Not Found" error (where the page doesn't exist), an access denied error confirms the page does exist, but you are not permitted to see it.
The "Access Denied" error is a common issue that users encounter when trying to access certain websites or web pages. This error typically indicates that the server hosting the website or page is refusing your request to access the content. There are several reasons why this might happen: access denied https wwwxxxxcomau sustainability link