Server Errors

[13:25:59 WARN]: Unexpected exception while parsing console command "lagg chunk"
org.bukkit.command.CommandException: Unhandled exception executing command 'lagg' in plugin ClearLag v2.6.2
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[spigot.jar:git-Spigot-1225]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:196) ~[spigot.jar:git-Spigot-1225]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:546) ~[spigot.jar:git-Spigot-1225]
    at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchServerCommand(CraftServer.java:533) [spigot.jar:git-Spigot-1225]
    at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:309) [spigot.jar:git-Spigot-1225]
    at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:274) [spigot.jar:git-Spigot-1225]
    at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:540) [spigot.jar:git-Spigot-1225]
    at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:446) [spigot.jar:git-Spigot-1225]
    at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [spigot.jar:git-Spigot-1225]
Caused by: java.lang.NullPointerException
    at me.minebuilders.clearlag.commands.ChunkCmd.run(ChunkCmd.java:45) ~[?:?]
    at me.minebuilders.clearlag.commands.BaseCmd.processCmd(BaseCmd.java:34) ~[?:?]
    at me.minebuilders.clearlag.listeners.CommandListener.onCommand(CommandListener.java:25) ~[?:?]
    at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[spigot.jar:git-Spigot-1225]
    ... 8 more