14:46:11 [INFO] Starting minecraft server version Beta 1.6.6
14:46:11 [INFO] Loading properties
14:46:11 [INFO] Starting Minecraft server on 192.168.1.4:25565
14:46:11 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-767-
g14a36a7-b818jnks (MC: 1.6.6)
14:46:11 [INFO] Preparing level "world"
14:46:11 [SEVERE] java.lang.NullPointerException
14:46:11 [SEVERE] at org.bukkit.craftbukkit.event.CraftEventFactory.callCr
eatureSpawnEvent(CraftEventFactory.java:228)
14:46:11 [SEVERE] at net.minecraft.server.World.a(World.java:1905)
14:46:11 [SEVERE] at net.minecraft.server.Chunk.addEntities(Chunk.java:470
)
14:46:11 [SEVERE] at net.minecraft.server.ChunkProviderServer.getChunkAt(C
hunkProviderServer.java:76)
14:46:11 [SEVERE] at net.minecraft.server.ChunkProviderServer.getOrCreateC
hunk(ChunkProviderServer.java:115)
14:46:11 [SEVERE] at net.minecraft.server.World.getChunkAt(World.java:218)
14:46:11 [SEVERE] at net.minecraft.server.World.getTypeId(World.java:161)
14:46:11 [SEVERE] at net.minecraft.server.World.isEmpty(World.java:165)
14:46:11 [SEVERE] at net.minecraft.server.World.a(World.java:132)
14:46:11 [SEVERE] at net.minecraft.server.WorldProvider.a(SourceFile:51)
14:46:11 [SEVERE] at net.minecraft.server.World.c(World.java:121)
14:46:11 [SEVERE] at net.minecraft.server.World.<init>(World.java:101)
14:46:11 [SEVERE] at net.minecraft.server.WorldServer.<init>(WorldServer.j
ava:23)
14:46:11 [SEVERE] at net.minecraft.server.MinecraftServer.a(MinecraftServe
r.java:169)
14:46:11 [SEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftSe
rver.java:146)
14:46:11 [SEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftSer
ver.java:285)
14:46:11 [SEVERE] at net.minecraft.server.ThreadServerApplication.run(Sour
ceFile:422)
14:46:11 [SEVERE] Unexpected exception
java.lang.NullPointerException
at org.bukkit.craftbukkit.event.CraftEventFactory.callCreatureSpawnEvent
(CraftEventFactory.java:228)
at net.minecraft.server.World.a(World.java:1905)
at net.minecraft.server.Chunk.addEntities(Chunk.java:470)
at net.minecraft.server.ChunkProviderServer.getChunkAt(ChunkProviderServ
er.java:76)
at net.minecraft.server.ChunkProviderServer.getOrCreateChunk(ChunkProvid
erServer.java:115)
at net.minecraft.server.World.getChunkAt(World.java:218)
at net.minecraft.server.World.getTypeId(World.java:161)
at net.minecraft.server.World.isEmpty(World.java:165)
at net.minecraft.server.World.a(World.java:132)
at net.minecraft.server.WorldProvider.a(SourceFile:51)
at net.minecraft.server.World.c(World.java:121)
at net.minecraft.server.World.<init>(World.java:101)
at net.minecraft.server.WorldServer.<init>(WorldServer.java:23)
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:169)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:146)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:285)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:422)
No idea what the heck is causing this, but thats why the Minecraft server did not come back up yet.