07.04 14:08:02 [Server] INFO Caused by: java.lang.NullPointerException
07.04 14:08:02 [Server] INFO at java.lang.Thread.run(Thread.java:745) [?:1.7.0_72]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_72]
07.04 14:08:02 [Server] INFO at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_72]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.PacketPlayInBlockDig.a(SourceFile:10) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.PacketPlayInBlockDig.a(SourceFile:40) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:588) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at net.minecraft.server.v1_8_R1.PlayerInteractManager.a(PlayerInteractManager.java:107) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:193) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:226) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-081dfa5-1a84bac]
07.04 14:08:02 [Server] INFO org.bukkit.event.EventException
07.04 14:08:02 [Server] ERROR Could not pass event PlayerInteractEvent to PlayerHeads v3.9-jenkins-PlayerHeads-1-54-ge0791a0