Problème erreur console à cause d'une traduction d'un plugin

[13:42:02 ERROR]: Cannot load plugins\Skyauth\messages.yml
org.bukkit.configuration.InvalidConfigurationException: found duplicate anchor 4
Vous; first occurence
 in "<string>", line 2, column 8:
      '1': &4Vous devez etre connectÚ / enr ...
           ^
second occurence
 in "<string>", line 3, column 8:
      '2': &4Vous Ûtes deja connectÚ !
           ^

        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlCo
nfiguration.java:55) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguratio
n.java:149) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguratio
n.java:114) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(Yam
lConfiguration.java:176) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]

        at fr.skyost.auth.utils.Config.reload(Config.java:45) [Skyauth.jar:?]
        at fr.skyost.auth.utils.Config.init(Config.java:96) [Skyauth.jar:?]
        at fr.skyost.auth.AuthPlugin.init(AuthPlugin.java:88) [Skyauth.jar:?]
        at fr.skyost.auth.AuthPlugin.onEnable(AuthPlugin.java:47) [Skyauth.jar:?
]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:218) [cr
aftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader
.java:457) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManage
r.java:384) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.jav
a:298) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.
java:280) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.reload(CraftServer.java:63
0) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.Bukkit.reload(Bukkit.java:279) [craftbukkit-1.7.2.jar:git-
Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:
23) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:19
6) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServe
r.java:542) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchServerCommand(Craf
tServer.java:529) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:
286) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:2
51) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:5
45) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java
:457) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:6
17) [craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
Caused by: org.yaml.snakeyaml.composer.ComposerException: found duplicate anchor
 4Vous; first occurence; second occurence
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:150) ~
[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java
:237) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160) ~
[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java
:237) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160) ~
[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:12
3) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
 ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseCons
tructor.java:121) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480) ~[craftbukkit-1
.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.yaml.snakeyaml.Yaml.load(Yaml.java:399) ~[craftbukkit-1.7.2.jar:g
it-Bukkit-1.7.2-R0.2-b2974jnks]
        at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlCo
nfiguration.java:53) ~[craftbukkit-1.7.2.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
        ... 23 more

Messages:
  '1': §4You must be logged in / registred !
  '2': §4You are already logged in !
  '3': §4Incorrect password !
  '4': §2You have been logged in !
  '5': §4You have already an account !
  '6': §4The confirmation is incorrect !
  '7': '§2Success ! You can now log in to this server with /login <password>. An unique
    code has been generated, it will be used if you want to change your password :
    /code/.'
  '8': §6You session has expired, log in with /login <password>.
  '9': §4This code is incorrect.
  '10': §2Success ! Your password has been changed ! If you were logged in, you have been disconnected, login you back with /login <password>.
  '11': Max trials reached !
  '12': §4You must be registered on this server !
  '13': §6Welcome /player/ ! Please register to play on this server. /register <password> <confirm>
  '14': §6Welcome back /player/ ! Please log in to play on this server. /login <password>
  '15': §4/player/ has reached the max trials allowed !
  '16': §4Sorry, you have reached your max trials ! Please wait a moment.
  '17': §2You can retry to connect you now.
  '18': §2You have been logged out !