Error when starting server

[cediop]

Hello!

I have a server and it ran perfectly until today, when i did restart it gave me an error with my world.

It starts normally until it should say done after loading the world but then this happens!

Error:

Unexpected exception

java.lang.NumberFormatException: saved.disable-null.value=null

at codechicken.core.ConfigTag.getBooleanValue(ConfigTag.java:170)

at codechicken.nei.NEIServerConfig.isPropertyDisabled(NEIServerConfig.java:130)

at codechicken.nei.NEIServerUtils.advanceDisabledTimes(NEIServerUtils.java:129)

at net.minecraft.server.mod_NotEnoughItems.processDisabledProperties(mod_NotEnoughItems.java:113)

at net.minecraft.server.mod_NotEnoughItems.onTickInGame(mod_NotEnoughItems.java:107)

at cpw.mods.fml.server.ModLoaderModContainer.tickStart(ModLoaderModContainer.java:285)

at cpw.mods.fml.common.FMLCommonHandler.gameTickStart(FMLCommonHandler.java:77)

at cpw.mods.fml.server.FMLBukkitHandler.onPreTick(FMLBukkitHandler.java:129)

at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:494)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:453)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

>

How can i fix this?

please HELP!

i´m on mac btw!

[penorzilla]

Try deleting your NEI mod in your servers mod's folder.