Hacking Tool l2offi/l2j

i use l2walker on official server --->all fine!
but when i open a client on l2j private server(while official client is running)--> hacking tool has detected bla bla and the clients (both official and private) crash


host file

127.0.0.1 localhost
#89.186.66.247 L2authd.lineage2.com #prvserv
#89.186.66.247 L2testauthd.lineage2.com #prvserv
#216.107.250.194 nprotect.lineage2.com #for solve problem with gameguard on prv server


in summary

only l2 official server (l2walker)-->ok
only l2j server -->ok
both l2j and l2 official (l2walker) -->crash

someone can help me?
thanks *-*

its because l2j servers have an option to check if the person is running gameguard or not and l2offi doesnt use this option. so when u run l2offi only its np but when u start l2j it checks if u have gameguard running if u dont have it it executes a command to close your client since u have 2 clients running it closes both