help me have problem connect

i have download the L2Alandra.rar and Systemfolder againnnn
from here http://www.phoenixl2.de/downloads.html

than i have deleted the old system folder .then i put the new system folder that i have downloaded..than i deleted from the new system forlder the L2Alandra.exe
and put the new one from the L2Alandra.rar

then i delet the old host fils and put the new one from the L2Alandra.rar

i trying to login and it show me erroe
a gameguard executon error has occarred...
what i must do ?
sory of my bad english

I've got same problem;/ grrrrrrrrr


P.S. i want back old system. He was good. I have win 7 and old system worked. Now i can't play

helpppppppp plsss

helpppppppppppppppppppppppppppppppppppppp fucking boringggggggggggggggggggggggggggggggg