I have a new Lavatube Version 2, only used it a couple times. The reason I can't use it is because my liquid leaks out of the cartomizer. First of all, is it alright if a bit of liquid leaks out of it? It leaks out of the bottom where you attach it to the Lavatube. Second, when I push the button to use it, I hear a crackling, (kinda like frying bacon) is that normal? I'm worried it'll explode....any thoughts would be helpful!