Getting Loading Error ! when i try to launch rest apps

I have followed the wiki guide for installing, licensing the Apps. I used EPM to map Parking, Voicemail, and DND apps to my Yealink T48gs and i get a window that says Loading… then Loading Error ! when i try to use them. The REST process is running. My system:
Ticket #230923
PIAF Installed Version = under HARDWARE x
x FreePBX Version = 12.0.9 12 x
x Running Asterisk Version = 11.12.0 x
x Asterisk Source Version = 11.12.0 x
x Dahdi Source Version = 2.10.0 x
x Libpri Source Version = 1.4.15 x
x IP Address = on eth0 x
x Operating System = CentOS release 6.6 (Final) >< x
x Kernel Version = 2.6.32-504.1.3.el6.x86_64 - 64 Bit

PIAF is not officially supported for commercial modules, as there are too many possible ways to build now with that Distro, and there is not guaranteed built in support for module dependencies. In this case it is likely that either firewall rules or htaccess settings are blocking access to the REST APPS, as they are coming in on ports that you define in System Admin. You may want to check with the Distro builders over at PIAF to see if they know where all the bodies are buried in order to open up access to those applications.