2012-01-09 01:42:05 [SEVERE] Could not pass event PLAYER_KICK to mChatSuite
java.lang.NoClassDefFoundError: de/bananaco/permissions/worlds/HasPermission
at net.milkbowl.vault.permission.plugins.Permission_bPermissions.playerHas(Permission_bPermissions.java:77)
at net.milkbowl.vault.permission.Permission.has(Permission.java:67)
at in.mDev.MiracleM4n.mChatSuite.mChatAPI.checkPermissions(mChatAPI.java:463)
at in.mDev.MiracleM4n.mChatSuite.mChatAPI.ParseMessage(mChatAPI.java:192)
at in.mDev.MiracleM4n.mChatSuite.mChatAPI.ParseEventName(mChatAPI.java:322)
at in.mDev.MiracleM4n.mChatSuite.events.MPlayerListener.onPlayerKick(MPlayerListener.java:204)
at org.bukkit.plugin.java.JavaPluginLoader$4.execute(JavaPluginLoader.java:286)
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:58)
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:339)
at net.minecraft.server.NetServerHandler.disconnect(NetServerHandler.java:107)

Can you build vault with the latest version of bpermissions?

Not at the moment, bPermissions is doing too much alteration.