Newbie quest problem

[Nass Karr]

In the short time I've been here everyone's been so helpfull. My account is 10 days old but I can't seem to do the Rat Quest. He keeps saying I'm busy come back later. I thought that might mean I didn't finish the quest but went back in and killed 30 more rats and still got the same message. Does anyone know what could be the problem?

[Asmodean]

single left click on yourself and cancel any other quests you might have. You can only have one active one at a time.