Please delete all FG-X plug-in files from these file paths:
RTAS: HD->Library->Application Support->Digidesign->Plug-Ins
Then, go to http://ilok.com and download/install iLok License Manager.
Then re-install FG-X, repair permissions on your OS drive with Disk Utility, and restart your computer.
If issues persist please Submit a Request to speak with a Technical Support Agent.