Can't get $notifications_total variable.

[Essencee]

Hello guys.
I am trying to edit "Cyb - PM System Enhancements" and add some part to it via the $notifications_total, but it seems that it's not working at all. My code is below:

PHP Code:

            if ((($vbulletin->userinfo['pmunread']>'0') AND ($vbulletin->options['cyb_pme_newpmsig_color']!='')) OR ($notifications_total > 0)) 
            { 
                eval('$cybpmblink = "' . fetch_template('cyb_pme_blink') . '";'); 
                $vbphrase[your_notifications] = $cybpmblink; 
            } 


What can I do?
Thank you!