Bukkit

What steps will reproduce the problem?
1. /bmt create [arena name] [player amount]
2.
3.

What is the expected output? What do you see instead?
Expected: Arena created
Gotten: "An internal error occurred while attempting to preform this command"

What version of the product are you using?
1.6.2

Do you have an error log of what happened?
17.10 16:59:17 [Server] INFO ... 15 more
17.10 16:59:17 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44)
17.10 16:59:17 [Server] INFO at bassintag.buildmything.common.BuildMyThing.onCommand(BuildMyThing.java:108)
17.10 16:59:17 [Server] INFO at bassintag.buildmything.common.buildZone.BuildZone.<init>(BuildZone.java:83)
17.10 16:59:17 [Server] INFO at org.bukkit.craftbukkit.v1_6_R3.scoreboard.CraftScoreboard.registerNewObjective(CraftScoreboard.java:20)
17.10 16:59:17 [Server] INFO at org.bukkit.craftbukkit.v1_6_R3.scoreboard.CraftScoreboard.registerNewObjective(CraftScoreboard.java:39)
17.10 16:59:17 [Server] INFO at org.apache.commons.lang.Validate.isTrue(Validate.java:157)
17.10 16:59:17 [Server] INFO Caused by: java.lang.IllegalArgumentException: The name 'BuildMyThing_points' is longer than the limit of 16 characters
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:421)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.MinecraftServer.s(MinecraftServer.java:488)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.DedicatedServer.t(DedicatedServer.java:227)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.MinecraftServer.t(MinecraftServer.java:592)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.DedicatedServerConnection.b(SourceFile:30)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.ServerConnection.b(SourceFile:37)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.PlayerConnection.e(PlayerConnection.java:116)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.NetworkManager.b(NetworkManager.java:296)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.Packet3Chat.handle(SourceFile:49)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.PlayerConnection.a(PlayerConnection.java:834)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.PlayerConnection.chat(PlayerConnection.java:877)
17.10 16:59:17 [Server] INFO at net.minecraft.server.v1_6_R3.PlayerConnection.handleCommand(PlayerConnection.java:959)
17.10 16:59:17 [Server] INFO at org.bukkit.craftbukkit.v1_6_R3.CraftServer.dispatchCommand(CraftServer.java:523)
17.10 16:59:17 [Server] INFO at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:192)
17.10 16:59:17 [Server] INFO at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46)
17.10 16:59:17 [Server] INFO org.bukkit.command.CommandException: Unhandled exception executing command 'bmt' in plugin BuildMyThing v1.6.2

Please provide any additional information below.
I think the downloads are broken, because I downloaded the 1.6.3/4 update, but when installed it's 1.6.2.