Essentials wird nicht erkannt

2011-05-22 17:52:02 [INFO] Starting minecraft server version Beta 1.5_02
2011-05-22 17:52:02 [INFO] Loading properties
2011-05-22 17:52:02 [INFO] Starting Minecraft server on 5.87.148.37:10
2011-05-22 17:52:02 [INFO] This server is running Craftbukkit version git-Bukkit-0.0.0-751-g45fecad-b798jnks (MC: 1.5_02)
2011-05-22 17:52:02 [INFO] Preparing level "world"
2011-05-22 17:52:02 [INFO] Preparing start region
2011-05-22 17:52:04 [SEVERE] Could not load 'plugins\Essentials.jar' in folder 'plugins': 
unacceptable character #FFFD special characters are not allowed
in "<reader>", position 3641
    at org.yaml.snakeyaml.reader.StreamReader.checkPrintable(StreamReader.java:68)
    at org.yaml.snakeyaml.reader.StreamReader.update(StreamReader.java:159)
    at org.yaml.snakeyaml.reader.StreamReader.prefix(StreamReader.java:130)
    at org.yaml.snakeyaml.scanner.ScannerImpl.scanPlainSpaces(ScannerImpl.java:1622)
    at org.yaml.snakeyaml.scanner.ScannerImpl.scanPlain(ScannerImpl.java:1594)
    at org.yaml.snakeyaml.scanner.ScannerImpl.fetchPlain(ScannerImpl.java:860)
    at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:348)
    at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:183)
    at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingValue.produce(ParserImpl.java:592)
    at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:163)
    at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:148)
    at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:132)
    at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:230)
    at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
    at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:122)
    at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:105)
    at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:124)
    at org.yaml.snakeyaml.Yaml.load(Yaml.java:264)
    at org.bukkit.util.config.Configuration.load(Configuration.java:74)
    at org.bukkit.plugin.java.JavaPlugin.initialize(JavaPlugin.java:156)
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:174)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:100)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
2011-05-22 17:52:04 [INFO] [Permissions] (Phoenix) was Initialized.
2011-05-22 17:52:04 [INFO] [Permissions] (Phoenix) was Initialized.
2011-05-22 17:52:04 [SEVERE] Could not load 'plugins\EssentialsChat.jar' in folder 'plugins': Essentials
org.bukkit.plugin.UnknownDependencyException: Essentials
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:132)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:100)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
2011-05-22 17:52:04 [SEVERE] Could not load 'plugins\EssentialsGeoIP.jar' in folder 'plugins': Essentials
org.bukkit.plugin.UnknownDependencyException: Essentials
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:132)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:100)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
2011-05-22 17:52:04 [SEVERE] Could not load 'plugins\EssentialsProtect.jar' in folder 'plugins': Essentials
org.bukkit.plugin.UnknownDependencyException: Essentials
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:132)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:100)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
2011-05-22 17:52:04 [SEVERE] Could not load 'plugins\EssentialsSpawn.jar' in folder 'plugins': Essentials
org.bukkit.plugin.UnknownDependencyException: Essentials
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:132)
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:194)
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:117)
    at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:100)
    at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:218)
    at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:205)
    at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:145)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:265)
    at net.minecraft.server.ThreadServerApplication.run(SourceFile:394)
2011-05-22 17:52:04 [INFO] GroupManager - INFO - Scheduled Data Saving is set for every 10 minutes!
2011-05-22 17:52:04 [INFO] GroupManager version 1.0(alpha-5) is enabled!
2011-05-22 17:52:04 [INFO] [Permissions] version [2.7.4] (Phoenix)  loaded
2011-05-22 17:52:04 [WARNING] [flyRidgeFly] Error while loading admns.txt
2011-05-22 17:52:04 [INFO] VoxelAir version 2.008 is enabled!
2011-05-22 17:52:04 [INFO] WorldEdit 4.4 enabled.
2011-05-22 17:52:04 [INFO] WorldEdit: Permissions plugin detected! Using Permissions plugin for permissions.
2011-05-22 17:52:04 [INFO] [Permissions] version [2.7.2] (Phoenix)  loaded
2011-05-22 17:52:04 [INFO] WorldEdit: Permissions plugin detected! Using Permissions plugin for permissions.
2011-05-22 17:52:04 [INFO] Done (0,139s)! For help, type "help" or "?"
2011-05-22 17:52:15 [INFO] ExChill [/5.87.148.37:60201] logged in with entity id 41 at (175.5, 75.62000000476837, 43.5)
2011-05-22 17:52:22 [INFO] ExChill issued server command: item compass 1
2011-05-22 17:54:25 [INFO] ExChill issued server command: i 345
2011-05-22 17:59:08 [INFO] <ExChill> sd