Caused by: java.lang.NullPointerException
[00:18:37] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to ChestCleaner v1.4.9.c
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-6016ac7-10c10b3]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at org.bukkit.craftbukkit.v1_10_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:231) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at org.bukkit.craftbukkit.v1_10_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:198) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.BlockRedstoneOre.stepOn(BlockRedstoneOre.java:38) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.Entity.move(Entity.java:742) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityLiving.g(EntityLiving.java:1686) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityHuman.g(EntityHuman.java:1449) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityLiving.n(EntityLiving.java:1988) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityHuman.n(EntityHuman.java:345) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityLiving.m(EntityLiving.java:1817) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityHuman.m(EntityHuman.java:142) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.EntityPlayer.k_(EntityPlayer.java:242) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.PlayerConnection.E_(PlayerConnection.java:138) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.NetworkManager.a(NetworkManager.java:233) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.ServerConnection.c(ServerConnection.java:140) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:832) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:399) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:672) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:571) [spigot.jar:git-Spigot-6016ac7-10c10b3]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_144]
Caused by: java.lang.NullPointerException