[Problem] Rankup - dziwny błąd.

[*RevangE*]

Witam pobrałem plugin RANKUP i gdy wpisuje komende /rankup wyświetla się 

an internal error occurred while attemting to preform this command

A w konsoli wyskakuje 
 

[12:10:45 INFO]: RevangE issued server command: /rankup
[12:10:45 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'rankup' in plugin Rankup v1.3
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:46) ~[craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:175) ~[craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:706) ~[craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PlayerConnection.handleCommand(PlayerConnection.java:984) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PlayerConnection.a(PlayerConnection.java:829) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.a(PacketPlayInChat.java:28) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.PacketPlayInChat.handle(PacketPlayInChat.java:65) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.NetworkManager.a(NetworkManager.java:147) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.ServerConnection.c(ServerConnection.java:77) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.u(MinecraftServer.java:700) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:273) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:562) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:469) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
Caused by: java.lang.NoSuchMethodError: net.milkbowl.vault.economy.Economy.withdrawPlayer(Lorg/bukkit/OfflinePlayer;D)Lnet/milkbowl/vault/economy/EconomyResponse;
        at com.fvza.rankup.Ranking.pay(Ranking.java:23) ~[?:?]
        at com.fvza.rankup.Ranking.rankup(Ranking.java:57) ~[?:?]
        at com.fvza.rankup.bukkit.Commands.onCommand(Commands.java:34) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) ~[craftbukkit.jar:git-Spigot-1.7.2-R0.3-122-gb58e277]
        ... 13 more

Config rankupa - 
 

settings:
    override-groups: true
    do-not-edit-this: 1
# Groups are ordered in the succession you want them to be. Format as follows: rankname: price ( Price can have a decimal place ) 
ranks:
    Ranga1: 1
    Ranga2: 250

Permission rangi 1 i rangi 2
 

groups:
  Ranga1:
    default: true
    prefix: '&8[Ranga1]&7 '
    permissions:
    - rankup.rankup
    - rankmarket.Ranga2
    - essentials.kit
    - essentials.kits.start
    - essentials.motd
    - iConomy.access
    - iConomy.list
    - iConomy.payment
    - iConomy.rank
    - iConomy.top
  Ranga2:
    default: false
    build: false
    inheritance:
    - Ranga1
    prefix: ' &8[Ranga2]&7 '
    permissions:
    - rankmarket.Ranga3

Jeżeli czegoś jeszcze potrzeba to pisać, totalnie nie wiem co jest nie tak :X

[nieznany1234567]

Musisz wgrać plugin Vault (API do obsługi ekonomii)

[*RevangE*]

Myślałem że to nie moze być to bo plugin już był wgrany ale jego reinstal pomógł, dziękuje bardzo
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