Solved error in console after updating an plugin

hello
i was updating an plugin of myself and i get an error as i do /sc without permission.
here's the error

Code:

 null
org.bukkit.command.CommandException: Unhandled exception executing command 'sc' in plugin staffChat_nl v1.5
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[minecraft.jar:git-Spigot-d276ab1-d219213]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) ~[minecraft.jar:git-Spigot-d276ab1-d219213]
        at org.bukkit.craftbukkit.v1_11_R1.CraftServer.dispatchCommand(CraftServer.java:650) ~[minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.PlayerConnection.handleCommand(PlayerConnection.java:1353) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:1188) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_121]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_121]
        at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:747) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:678) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:576) [minecraft.jar:git-Spigot-d276ab1-d219213]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]
Caused by: java.lang.NullPointerException
        at chat.Main.onCommand(Main.java:25) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[minecraft.jar:git-Spigot-d276ab1-d219213]
        ... 15 more

can anybody help me?

 

Well you always find your Exception at Caused by: java.lang.NullPointerException

This Exception means that one Field or Method on an object refers to a NULL Reference
d.h. that something returns NULL which isn't allowed in many cases.

Now you go in your main class to line 25 in your onCommand method and try to find the thing that returns NULL.

An easy to fix it would build an if-clause around it and just null check, before you are creating a variable or you just write the line and post it and we will help you here

 

i already fixed it

 

@_Chazzie_
If your problem has been solved, mark this thread as solved.