Voltz server bat. file will not finish preparing spawn

[KeetBeReal]

Launcher Version: 1.1.4

Operating System: windows 7 Home Premium Service Pack 1

Java Version: Latest and greatest

Antivirus Program: Norton

Description of Problem:

I have been playing on my Voltz Hamachi server for the last week. Everything was working fine and my friends and I could all join and get on. When I tried to run my server again today though, it went through all the text on screen, then it started to Prepare Spawn,and gave me random percentages every time, but once its close to finishing it says "A fatal exception occurred during the server starting event". The only change I have made since yesterday was that I moved my modem and router to a different room. Any help would be appreciated!

Error Messages:

2013-06-01 15:52:53 [sEVERE] [ForgeModLoader] A fatal exception occurred during

the server starting event

java.lang.NullPointerException

at universalelectricity.prefab.flag.ModFlag.readFromNBT(ModFlag.java:34)

at universalelectricity.prefab.flag.ModFlag.<init>(ModFlag.java:27)

at icbm.core.ZhuYao.serverStarting(ZhuYao.java:157)

at icbm.wanyi.ZhuYaoWanYi.serverStarting(ZhuYaoWanYi.java:124)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContain

er.java:487)

at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java

:69)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(Synch

ronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.jav

a:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadControll

er.java:153)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

at java.lang.reflect.Method.invoke(Unknown Source)

at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java

:69)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(Synch

ronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:317)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.jav

a:300)

at com.google.common.eventbus.EventBus.post(EventBus.java:268)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadControl

ler.java:86)

at cpw.mods.fml.common.Loader.serverStarting(Loader.java:721)

at cpw.mods.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHa

ndler.java:315)

at ho.c(DedicatedServer.java:199)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:458)

at fy.run(SourceFile:849)

Error Log: