Minecraft serveur problème

Bonjour,

Voilà, j'ai un serveur sous bukkit 1.0.0 avec la version du jeu légal. Normalement tout est à jour sauf que je tombe sur sa sur ma console :



[GRAVE] unacceptable character '?' (0xFFFD) special characters are not

er>", position 212
[GRAVE] at org.yaml.snakeyaml.reader.StreamReader.checkPrintable
ader.java:98)
[GRAVE] at org.yaml.snakeyaml.reader.StreamReader.update(StreamR
a:191)
[GRAVE] at org.yaml.snakeyaml.reader.StreamReader.<init>(StreamR
a:63)
[GRAVE] at org.yaml.snakeyaml.Yaml.load(Yaml.java:423)
[GRAVE] at org.bukkit.util.config.Configuration.load(Configurati
9)
[GRAVE] at com.nijiko.data.YamlGroupStorage.reload(YamlGroupStor
179)
[GRAVE] at com.nijiko.data.YamlGroupStorage.<init>(YamlGroupStor
30)
[GRAVE] at com.nijiko.data.YamlCreator.getGroupStorage(YamlCreat
7)
[GRAVE] at com.nijiko.data.StorageFactory.getGroupStorage(Storag
java:129)
[GRAVE] at com.nijiko.permissions.ModularControl.forceLoadWorld(
ntrol.java:96)
[GRAVE] at com.nijiko.permissions.ModularControl.loadWorld(Modul
.java:86)
[GRAVE] at com.nijiko.permissions.ModularControl.load(ModularCon
:116)
[GRAVE] at com.nijikokun.bukkit.Permissions.Permissions.setupPer
Permissions.java:181)
[GRAVE] at com.nijikokun.bukkit.Permissions.Permissions.onLoad(P
s.java:133)
[GRAVE] at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftS
a:154)
[GRAVE] at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer
)
[GRAVE] at net.minecraft.server.ServerConfigurationManager.<init
onfigurationManager.java:52)
[GRAVE] at net.minecraft.server.MinecraftServer.init(MinecraftSe
:145)
[GRAVE] at net.minecraft.server.MinecraftServer.run(MinecraftSer
399)
[GRAVE] at net.minecraft.server.ThreadServerApplication.run(Sour
7)
[GRAVE] [Permissions] Unable to load permission data.
[GRAVE] [Permissions] Shutting down Permissions due to error(s).

Après multiples recherches je n'arrive toujours pas à trouver pourquoi :/
Help s'il vous plait !
Merci :S