[Help] Walker on C4 BFD server

[Death Rider]

Can anyone help me? They applied new patch and without it you can't get in to the server. The patch uses new GG. First of all when launching from the walker i get a msg that the size of l2.exe is incorrect. Second problem: when i launch l2 normaly with the new patch and not close the walker i used before i get a msg "Hacking program detected. Colse it and bla bla bla..." from the GG... Maybe there's a similar protection system elsewhere? How to deal with it?