[INFO] edyyy issued server command: /walls start walls4
2013-05-12 09:39:47 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'walls' in plugin TheWalls v1.1.0.1
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
	at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:547)
	at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerConnection.java:980)
	at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:896)
	at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:841)
	at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44)
	at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:186)
	at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:110)
	at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
	at org.spigotmc.MultiplexingServerConnection.b(MultiplexingServerConnection.java:72)
	at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:583)
	at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:224)
	at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
	at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
	at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at rubik_cube_man.plugins.walls.WallsCommand.onCommand(WallsCommand.java:224)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 15 more


[INFO] edyyy issued server command: /walls stop
2013-05-12 09:39:25 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'walls' in plugin TheWalls v1.1.0.1
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:189)
	at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServer.java:547)
	at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerConnection.java:980)
	at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:896)
	at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:841)
	at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44)
	at org.spigotmc.netty.NettyNetworkManager.b(NettyNetworkManager.java:186)
	at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:110)
	at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
	at org.spigotmc.MultiplexingServerConnection.b(MultiplexingServerConnection.java:72)
	at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:583)
	at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:224)
	at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:472)
	at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:404)
	at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at rubik_cube_man.plugins.walls.blockFileData.ArenaFileManager.restoreArena(ArenaFileManager.java:42)
	at rubik_cube_man.plugins.walls.Arena.RestoreBlocks(Arena.java:145)
	at rubik_cube_man.plugins.walls.WallsCommand.onCommand(WallsCommand.java:147)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 15 more