Bukkit

Tuto] Enabling Tuto v1.6.5
2013-05-05 06:48:28 [INFO] [Tuto] Permission plugin not detected, defaulting to OP or in-built system.
2013-05-05 06:48:28 [SEVERE] Cannot load plugins/Tuto/Tuto.yml
org.bukkit.configuration.InvalidConfigurationException: unacceptable character '�' (0xFFFD) special characters are not allowed
in "<string>", position 15
    at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:55)
    at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:138)
    at org.bukkit.configuration.file.FileConfiguration.load(FileConfiguration.java:105)
    at org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(YamlConfiguration.java:175)
    at org.rominos2.Tuto.TutoSettings.load(TutoSettings.java:43)
    at org.rominos2.Tuto.Tuto.onEnable(Tuto.java:43)
    at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
    at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:457)
    at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:383)
    at org.bukkit.craftbukkit.v1_5_R3.CraftServer.loadPlugin(CraftServer.java:306)
    at org.bukkit.craftbukkit.v1_5_R3.CraftServer.enablePlugins(CraftServer.java:288)
    at net.minecraft.server.v1_5_R3.MinecraftServer.j(MinecraftServer.java:310)
    at net.minecraft.server.v1_5_R3.MinecraftServer.e(MinecraftServer.java:289)
    at net.minecraft.server.v1_5_R3.MinecraftServer.a(MinecraftServer.java:249)
    at net.minecraft.server.v1_5_R3.DedicatedServer.init(DedicatedServer.java:149)
    at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java:388)
    at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:573)
Caused by: unacceptable character '�' (0xFFFD) special characters are not allowed
in "<string>", position 15
    at org.yaml.snakeyaml.reader.StreamReader.checkPrintable(StreamReader.java:70)
    at org.yaml.snakeyaml.reader.StreamReader.<init>(StreamReader.java:50)
    at org.yaml.snakeyaml.Yaml.load(Yaml.java:399)
    at org.bukkit.configuration.file.YamlConfiguration.loadFromString(YamlConfiguration.java:53)
    ... 16 more

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Please set up http://fourkitchens.com/blog/2011/09/20/trigger-jenkins-builds-pushing-github, so we can test your latest developments on the fly.
Thank you for this great pluigin!

It's due to the Yaml config. Try to delete the config and let the server create a new one.