[Server thread/ERROR]: Could not pass event PlayerKickEvent to EnjinMinecraftPlugin v2.7.2
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.PlayerConnection.disconnect(PlayerConnection.java:162) [spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.craftbukkit.v1_8_R2.entity.CraftPlayer.kickPlayer(CraftPlayer.java:221) [spigot.jar:git-Spigot-870264a-0a645a2]
	at com.earth2me.essentials.User.checkActivity(User.java:623) [Essentials-2.x-SNAPSHOT.jar:?]
	at com.earth2me.essentials.EssentialsTimer.run(EssentialsTimer.java:72) [Essentials-2.x-SNAPSHOT.jar:?]
	at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftTask.run(CraftTask.java:71) [spigot.jar:git-Spigot-870264a-0a645a2]
	at org.bukkit.craftbukkit.v1_8_R2.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.MinecraftServer.A(MinecraftServer.java:720) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.DedicatedServer.A(DedicatedServer.java:368) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.MinecraftServer.z(MinecraftServer.java:651) [spigot.jar:git-Spigot-870264a-0a645a2]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:554) [spigot.jar:git-Spigot-870264a-0a645a2]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_31]
Caused by: java.lang.NullPointerException