Sure thing. This is the URL Below.http://sitalcollege.com/edu/index.php/programmes/certificates
If you navigate to the, Corporate Training, Diplomas, and AIB pages within the menu, you can see that it exists in all of these and gives the same issue.
Now i did observe something. If I displayed the page titled "portfolio" under the menu "Pages" , the exact same way that it was displayed in the DEMO, it works. If any of these were to be placed in the heading "pages" ( as in the DEMO ), they work magically. I tried to use these pages, ( certificates ect) under the heading pages, but once i changed the menu name from "pages" to whichever menu name i chose. The portfolio code would seem not to work.