Bukkit

What steps will reproduce the problem?
1. Just chatting. The problem sometimes happens, sometimes it doesn't.

What is the expected output? What do you see instead?
Expected: Normal Chat (Format: [Rank] Name: Message (using Color Codes)
Instead: Normal Vanilla chat. (<Name> Message)

What version of the product are you using?
bChatManager v3.0-BETA

Do you have an error log of what happened?
[SEVERE] Could not pass event AsyncPlayerChatEvent to bChatManager v3.0-BETA
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
    at org.bukkit.plugin.TimedRegisteredListener.callEvent(TimedRegisteredListener.java:24)
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:459)
    at net.minecraft.server.v1_5_R3.PlayerConnection.chat(PlayerConnection.java:894)
    at net.minecraft.server.v1_5_R3.PlayerConnection.a(PlayerConnection.java:846)
    at net.minecraft.server.v1_5_R3.Packet3Chat.handle(Packet3Chat.java:44)
    at net.minecraft.server.v1_5_R3.NetworkManager.i(NetworkManager.java:210)
    at net.minecraft.server.v1_5_R3.NetworkManager.c(NetworkManager.java:346)
    at net.minecraft.server.v1_5_R3.NetworkReaderThread.run(SourceFile:94)
Caused by: java.util.UnknownFormatConversionException: Conversion = '2'
    at org.bukkit.event.player.AsyncPlayerChatEvent.setFormat(AsyncPlayerChatEvent.java:82)
    at net.rymate.bchatmanager.bChatListener.onPlayerChat(bChatListener.java:105)
    at sun.reflect.GeneratedMethodAccessor211.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
    ... 10 more

I get this on both 3.0 and 3.0 BETA. Using MCPC 1.5.2

This problem seems to occur if somebody writes a Message with this letter: %