You start the AVA from ijjis reactor,
and when Avas little window pops up when it loads the GameGuard or Nprotect.
Press Inject, if it does not work then I do not know.
what is your operating system?
if you have Vista or Win7 try to run as admin <- right click on the Valkyrie and "run as admin".
if it does not work, your computer's idiot