Kann man die Errors mal sehen?
Natürlich, hier:
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.bukkit.plugin.java.JavaPlugin.reloadConfig(JavaPlugin.java:117)
at <Paket>(<Name>.java:48)
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:381)
at org.bukkit.craftbukkit.v1_6_R3.CraftServer.loadPlugin(CraftServer.java:284)
at org.bukkit.craftbukkit.v1_6_R3.CraftServer.enablePlugins(CraftServer.java:266)
at net.minecraft.server.v1_6_R3.MinecraftServer.l(MinecraftServer.java:315)
at net.minecraft.server.v1_6_R3.MinecraftServer.f(MinecraftServer.java:292)
at net.minecraft.server.v1_6_R3.MinecraftServer.a(MinecraftServer.java:252)
at net.minecraft.server.v1_6_R3.DedicatedServer.init(DedicatedServer.java:152)
at net.minecraft.server.v1_6_R3.MinecraftServer.run(MinecraftServer.java:393)
at net.minecraft.server.v1_6_R3.ThreadServerApplication.run(SourceFile:583)
Caused by: could not determine a constructor for the tag tag:yaml.org,2002:org.bukkit.Material
in "<string>", line 4, column 13:
Helmet: !!org.bukkit.Material 'IRON_HELMET'
^
at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructUndefined.construct(SafeConstructor.java:475)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:183)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:326)
at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:143)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:307)
at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:459)
at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:26)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:183)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:326)
at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:143)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:307)
at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:459)
at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:26)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:183)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping2ndStep(BaseConstructor.java:326)
at org.yaml.snakeyaml.constructor.SafeConstructor.constructMapping2ndStep(SafeConstructor.java:143)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructMapping(BaseConstructor.java:307)
at org.yaml.snakeyaml.constructor.SafeConstructor$ConstructYamlMap.construct(SafeConstructor.java:459)
at org.bukkit.configuration.file.YamlConstructor$ConstructCustomObject.construct(YamlConstructor.java:26)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructObject(BaseConstructor.java:183)
at org.yaml.snakeyaml.constructor.BaseConstructor.constructDocument(BaseConstructor.java:142)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:128)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
at org.yaml.snakeyaml.Yaml.load(Yaml.java:399)
EDIT: P.S:
In der Config siehts so aus:
Helmet: !!org.bukkit.Material 'IRON_HELMET'
Chest: !!org.bukkit.Material 'IRON_CHESTPLATE'
Legs: !!org.bukkit.Material 'IRON_LEGGINGS'
Boots: !!org.bukkit.Material 'IRON_BOOTS'