When I do a fresh install off the DNN software (DNN 7.2.2) and when I install a new website, the website has a 404 error page. (You can find it under Admin, Pages).

On my live website (which is upgrade with DNN 7.2.2) there is no 404 error page available. I tried to manually add a 404 Error page.

I also changed the mode of the DNNFriendlyUrl provider to advanced.

But I still get the server error message on 404 errors, instead of the 404 Error page that I created.

Is there something I forget to do?