We have a problem with KAVA / UAVA / AVA SEA now as they turned the "Heartbeat" on with all the worldwide servers. When you load Xigncode3 you don't see the hidden files on your system, and they run the xxd.xem which you can see which is checked back on the server. If you are not connected to xxd.xem and have not loaded Xigncode3 it DC's you from the server. The only way to play with hacks now is to use undetected ones.
As for the hacks, you will have to wait for a new release or see if there are any VIP hacks on the market for KAVA.