I finished making my server played a little bit in server.properties. When all said and done I enter minecraft, enter my IP and try to login, but it didn't work. I investigated. The server wasn't running what so ever. So I launch over and over and it simply doesn't open. I tweaked with some things in the server's properties and found out that the IP that I entered is what's stopping me to play. This is not only stopping me, but also my friend. In the end this is a screenshot that I managed to pull out before it closed back.