Failed to open portlet in liferay dialog

I have a dialog in my portal that opens a portlet. When I click on the link and the dialog opens, the dialog displays

You do not have the required roles to access this portlet.

However, if I add the same portlet to the page, the portlet opens without any delay, both on the page and in the dialog. What am I missing here? Anyone got it?

My codes:

#set ($profile_url = $portletURLFactory.create($request, "profile_WAR_profileportlet", $getterUtil.getLong($plid), "RENDER_PHASE"))
 $profile_url.setParameter("p_p_state", "exclusive")

<a href="#" id="profile" onclick="openDialog('$profile_url','preferences-dialog',500,500)"> Profile </a> 



window,
        'openDialog', //function name
        function(url, popupID, wd, ht) { // parameters to the function
            var A = AUI();

            popupDialog = new A.Dialog({

                    id: popupID, // popupId passed so that it would be easy to close it through events other than the close button
                    centered: false, // all the different parameters function you can check in the Alloy API
                    draggable: true,
                    resizable: false,
                    width: wd,
                    stack: true,
                    modal: true,
                    height: ht,
                    scrollbars: true,
                    xy: [getWidth()/2-wd/2,10]
                }
            ).plug(
                A.Plugin.IO,
                {
                    uri: url
                }
            );

            popupDialog.render();
        },
        ['aui-dialog','aui-dialog-iframe']
    );

      

        
        
        
      

    

Thanks in advance for any help anyone can provide.