Missing plugin to Eleven Rack on Pro Tools 8 LE

I am missing the plugin in Pro Tools 8 LE for my Eleven Rack. I haven't PR in quite a bit but it worked fine a few months ago. Now the plugin is missing. The ER window in PR is working just fine. I can upload presets that i have downloaded and change settings. I just can't hear the rig through PR. I can hear the rig just fine when I'm not using PR when i create the ER as my audio output when i connect it via usb so i can play along with music through iTunes.

Any help would be much appreciated!!!