Editing npc problem

Hi guys, i am new here, i'm creating a local ryl 2 server 4fun and have some problems

1) I edit my npcs using ryl coder (npcscript.mdf) but if put the new npcscript on my client and server, the game close on login screem

2) i need help to configure mobs drop

tnks for the help

sorry bad english

1) Check your AuthServer log and check for the new clients checksum and update it :)

1) maybe u have done something wrong... eg. ur npc id cannot be same..need to use unique

2) here