Hi. I'm trying to setup a craftbukkit server. I made a server before I made the craftbukkit server. When I put in a custom ip under server properties it says can't resolve host name. When I put in my ip address of my computer it says that another server might be using it? I don't know how to change it back to localhost the way it was before I did anything. So can anyone help me with this? I can't even get on my server.