[17:56:16] [Server thread/WARN]: java.lang.NullPointerException
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.Village.a(Village.java:394)
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.PersistentVillage.a(SourceFile:215)
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.PersistentCollection.get(PersistentCollection.java:51)
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.WorldServer.b(WorldServer.java:72)
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.MinecraftServer.a(MinecraftServer.java:262)
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.DedicatedServer.init(DedicatedServer.java:273)
[17:56:16] [Server thread/WARN]: at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:564)
[17:56:16] [Server thread/WARN]: at java.lang.Thread.run(Unknown Source)
