java.lang.IllegalArgumentException: Plugin cannot be null
	at org.apache.commons.lang.Validate.notNull(Validate.java:203) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.validate(CraftScheduler.java:391) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.runTaskTimerAsynchronously(CraftScheduler.java:137) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.scheduler.CraftScheduler.scheduleAsyncRepeatingTask(CraftScheduler.java:133) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at me.Hendrik.Fguns.Chests.start(Chests.java:18) ~[?:?]
	at me.Hendrik.Fguns.main.onEnable(main.java:11) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:250) ~[craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:350) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:384) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugin(CraftServer.java:298) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.enablePlugins(CraftServer.java:280) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.reload(CraftServer.java:630) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.Bukkit.reload(Bukkit.java:279) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:196) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchCommand(CraftServer.java:542) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.dispatchServerCommand(CraftServer.java:529) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at net.minecraft.server.v1_7_R1.DedicatedServer.aw(DedicatedServer.java:286) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at net.minecraft.server.v1_7_R1.DedicatedServer.u(DedicatedServer.java:251) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.t(MinecraftServer.java:545) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:457) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [craftbukkit.jar:git-Bukkit-1.7.2-R0.2-3-g530fcb7-b2978jnks]