try to ask in the support section in there website
I had this error for a while,
Here are the steps.
DELETE EVERYTHING IN YOUR AVA FOLDER.(NOT THE SETUP, I REPEAT NOT THE SETUP)
Reinstall AVA
Repair AVA with the AVA setup
SHOULLD WORRKK.
Find the GameGuard folder and delete it.
Next time u try to start the game, ava will redownload it and it should work.