RegionOwn NPE

2013-06-10 20:21:07 [INFO] Drehverschluss issued server command: /region save Test
2013-06-10 20:21:15 [INFO] Drehverschluss issued server command: /region done
2013-06-10 20:21:15 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'region' in plugin RegionOwn v0.2.3
	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:523)
	at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerConnection.java:965)
	at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:883)
	at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:840)
	at org.getspout.spout.SpoutPlayerConnection.a(SpoutPlayerConnection.java:120)
	at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44)
	at net.minecraft.server.v1_5_R3.NetworkManager.b(NetworkManager.java:292)
	at net.minecraft.server.v1_5_R3.PlayerConnection.d(PlayerConnection.java:109)
	at org.getspout.spout.SpoutPlayerConnection.d(SpoutPlayerConnection.java:195)
	at net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
	at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:30)
	at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:581)
	at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:226)
	at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:477)
	at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:410)
	at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: java.lang.NullPointerException
	at com.codisimus.plugins.regionown.RegionSelector.endSelection(RegionSelector.java:136)
	at com.codisimus.plugins.regionown.RegionOwnCommand.onCommand(RegionOwnCommand.java:101)
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
	... 17 more