Bukkit

What steps will reproduce the problem?
1.install multicurrency on bukkit 1.4.5 R0.2
2.install vault lastest build
3.lauch server

What is the expected output? What do you see instead?
Error :

20:29:10 [INFO] [MultiCurrency] loading configuration
20:29:10 [INFO] [MultiCurrency] registering events..
20:29:10 [SEVERE] Error occurred while enabling MultiCurrency v2.1 (Is it up to date?)
java.lang.NullPointerException
        at me.ashtheking.currency.PropertyManager.listProperties(PropertyManager.java:98)
        at me.ashtheking.currency.CurrencyList.loadAll(CurrencyList.java:13)
        at me.ashtheking.currency.Currency.onEnable(Currency.java:59)
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:374)
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
        at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:270)
        at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:252)
        at net.minecraft.server.MinecraftServer.j(MinecraftServer.java:320)
        at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:299)
        at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:258)
        at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:147)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:398)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
20:29:10 [INFO] [Vault][Economy] MultiCurrency hooked.

What version of the product are you using?

Do you have an error log of what happened?

Please provide any additional information below.
I verfied twice and I have the version 2.2 not the 2.1 as writen in the code.