17:00:36 [INFO] [PvPArena] Enabling PvPArena v1.0
17:00:36 [INFO] [PvPArena] eingeschaltet.
17:00:36 [SEVERE] Error occurred while enabling PvPArena v1.0 (Is it up to date?
)
java.lang.NullPointerException
        at main.pvparena.onEnable(pvparena.java:17)
        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(SimplePluginManage
r.java:381)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.loadPlugin(CraftServer.jav
a:282)
        at org.bukkit.craftbukkit.v1_5_R3.CraftServer.enablePlugins(CraftServer.
java:264)
        at net.minecraft.server.v1_5_R3.MinecraftServer.j(MinecraftServer.java:3
04)
        at net.minecraft.server.v1_5_R3.MinecraftServer.e(MinecraftServer.java:2
83)
        at net.minecraft.server.v1_5_R3.MinecraftServer.a(MinecraftServer.java:2
43)
        at net.minecraft.server.v1_5_R3.DedicatedServer.init(DedicatedServer.jav
a:151)
        at net.minecraft.server.v1_5_R3.MinecraftServer.run(MinecraftServer.java
:382)
        at net.minecraft.server.v1_5_R3.ThreadServerApplication.run(SourceFile:5
73)