User blog:Terrerianoob44/noob here need help

hi im new to terreria my npcs arent spawnig and i dont know why i killed the guide with the voodoo dool might that be the reason the only npc i have is the merchent i have a bomb in my in   vertoy and its been un there for 5 game days i have a sutible home i also killed the big blue king slim but no dryad i have a handgun(that i got from a server) but no arms dealer WHAT IS UP