MC Error

[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] java.lang.NullPointerException
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at StevenDimDoors.mod_pocketDim.core.PocketManager.createAndRegisterBlacklist(PocketManager.java:697)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at StevenDimDoors.mod_pocketDim.saving.DDSaveHandler.loadAll(DDSaveHandler.java:59)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at StevenDimDoors.mod_pocketDim.core.PocketManager.loadInternal(PocketManager.java:442)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at StevenDimDoors.mod_pocketDim.core.PocketManager.load(PocketManager.java:263)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at StevenDimDoors.mod_pocketDim.EventHookContainer.onWorldLoad(EventHookContainer.java:114)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraftforge.event.ASMEventHandler_32_EventHookContainer_onWorldLoad_Load.invoke(.dynamic)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraftforge.event.ASMEventHandler.invoke(ASMEventHandler.java:39)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraftforge.event.EventBus.post(EventBus.java:108)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:85)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:107)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:445)
[B#347]  2016-09-25 02:31:52 [INFO] [STDOUT] 	at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:583)