server wont start up anymore

[Katalysator]

can someone help me this is the second time happening to me

2013-10-13 16:46:57 [sEVERE] [ForgeModLoader] The following problems were captured during this phase

2013-10-13 16:46:57 [sEVERE] [ForgeModLoader] Caught exception from AtomicScience

java.lang.NullPointerException

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

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

at atomicscience.ZhuYao.serverStarting(ZhuYao.java:719)

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(FMLModContainer.java:494)

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:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:192)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:172)

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:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:103)

at cpw.mods.fml.common.Loader.serverStarting(Loader.java:740)

at cpw.mods.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHandler.java:314)

at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:205)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)

at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

2013-10-13 16:46:57 [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 atomicscience.ZhuYao.serverStarting(ZhuYao.java:719)

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(FMLModContainer.java:494)

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:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:192)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:172)

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:74)

at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

at com.google.common.eventbus.EventBus.post(EventBus.java:267)

at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:103)

at cpw.mods.fml.common.Loader.serverStarting(Loader.java:740)

at cpw.mods.fml.common.FMLCommonHandler.handleServerStarting(FMLCommonHandler.java:314)

at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:205)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)

at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

and is this possible to fix ?

[phazeonphoenix]

I ran into the same thing once and managed to fix it by temporarily renaming my world save directory, launching then shutting down the server and copying the ModFlag.dat file from the newly created world save into the old world save then renaming it back again. I have no idea why it happened either. Do you have Forge Essentials installed?

[Katalysator]

THANKS!!!! worked

and i have forge installed dont know if there are other version of it ?!?

[phazeonphoenix]

I also have forge essentials installed and when this happened to me there where errors in the log regarding the automated backups failing. I wasn't able to log into my server and after restarting it this error occurred on startup for me as well. I don't know if there's another version of forge essentials. I was trying to find a commonality between what happened.