Black Screen Bug

[Yoshinator2]

Hello,

I am trying to play on my friends server, but whenever i start joining it, it goes to "These are the end times" screen etc, and it doesnt show anything at the bottom such as "Unpacking Map Data". Its just blank and wont let me join it. Ive reinstalled, restarted, my game multiple times, but it doesnt work. Here are some of the errors in the command prompt/startup thingy:

Exception in thread "GameLoadingThread" java.lang.NullPointerException

 

at zombie.ui.TutorialManager.CreateQuests(TutorialManager.java:108)

 

at zombie.gameStates.GameLoadingState$1.run(GameLoadingState.java:256)

 

at java.lang.Thread.run(Thread.java:724)

I know it should because I was playing on it a few minutes before it started. Please help! I am also joining the server through hamachi if that helps. 

              Thanks,

                    Yoshinator2