Help with error

When digit the command appears this error, how to fix?

Code:

Code:

       p.setPlayerListName("§4[Red team]§f" + p.getName());
        String pn = p.getName();
        EntityPlayer ep = ((CraftPlayer)p).getHandle();
        ep.displayName = "§4[Red team]" + p.getName();
        Packet20NamedEntitySpawn packet = new Packet20NamedEntitySpawn(ep);
        packet.b = "§4[Red team]" + p.getName();
        for(Player loop : p.getWorld().getPlayers())
        {
               if(loop != p)
               {
                       ((CraftPlayer)loop).getHandle().playerConnection.sendPacket(packet);
               }
        }
        ep.displayName = pn;
    return false;
  }

Error:

Code:

19:03:04 [SEVERE] null
org.bukkit.command.CommandException: Unhandled exception executing command 'addt
ag' in plugin TheTags v2.0
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:18
9)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.dispatchCommand(CraftServe
r.java:523)
        at net.minecraft.server.v1_5_R3.PlayerConnection.handleCommand(PlayerCon
nection.java:965)
        at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.j
ava:883)
        at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java
:840)
        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 net.minecraft.server.v1_5_R3.ServerConnection.b(SourceFile:35)
        at net.minecraft.server.v1_5_R3.DedicatedServerConnection.b(SourceFile:3
0)
        at net.minecraft.server.v1_5_R3.MinecraftServer.r(MinecraftServer.java:5
81)
        at net.minecraft.server.v1_5_R3.DedicatedServer.r(DedicatedServer.java:2
26)
        at net.minecraft.server.v1_5_R3.MinecraftServer.q(MinecraftServer.java:4
77)
        at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java
:410)
        at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:5
73)
Caused by: java.lang.IllegalArgumentException: Player list names can only be a m
aximum of 16 characters long
        at org.bukkit.craftbukkit.v1_5_R3.entity.CraftPlayer.setPlayerListName(C
raftPlayer.java:170)
        at me.souonick.C.TheTags.Main.onCommand(Main.java:30)
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
        ... 15 more
>

 

It tells you in the stacktrace. Player list names can only be a maximum of 16 characters long.
I assume that when you add your tag in front of the name, combined it is longer than 16 characters.

 

@Minecraft Frontiers
I reduced the number of characters but the error remains