Ok now I got it. The menu in dashboard portfolio is not made by us it must be coming from any 3rd party plugin. This is the page where our portfolio recides: http://dev.dynamicscapital.com/wp-admin/edit.php?post_type=teriz_portfolio
If you go there & try to open a page you’ll see it’s not loading a 404 page instead it’ll load the page properly. You don’t need to use that portfolio or 3rd party plugin integration. You can use theme default portfolio system which is Teriz Portfolio. Hopefully this time you’ll understand.