Error

[Server thread/ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'set' in plugin Lobby_System v1.0
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.dispatchCommand(CraftServer.java:646) ~[Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.PlayerConnection.handleCommand(PlayerConnection.java:1133) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.PlayerConnection.a(PlayerConnection.java:968) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.PlayerConnectionUtils$1.run(SourceFile:13) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_40]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_40]
	at net.minecraft.server.v1_8_R2.SystemUtils.a(SourceFile:60) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:710) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.lang.NullPointerException
	at me.xtreame.BungeeNetwork.Methoden.spawnloc_methoden.setspawnloc(spawnloc_methoden.java:52) ~[?:?]
	at me.xtreame.BungeeNetwork.Commands.CMD_set.onCommand(CMD_set.java:36) ~[?:?]
	at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[Spigot-1.8.jar:git-Spigot-dbe012b-61ef214]
	... 15 more