[16:43:18] [Server thread/ERROR]: Could not pass event InventoryClickEvent to FFA v1.0.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1630) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:31) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:9) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_101]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_101]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_101]
Caused by: java.lang.IllegalArgumentException: Plugin cannot be null
	at org.apache.commons.lang.Validate.notNull(Validate.java:192) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.validate(CraftScheduler.java:397) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.runTaskTimer(CraftScheduler.java:123) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.scheduleSyncRepeatingTask(CraftScheduler.java:119) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.scheduleSyncDelayedTask(CraftScheduler.java:102) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	at net.ducktale.main.ForceMapListener.onMap(ForceMapListener.java:84) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_101]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_101]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_101]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_101]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-db6de12-d3e0b6f]
	... 15 more