[17:46:51] [Server thread/ERROR]: Could not pass event PlayerQuitEvent to PerWorldInventory v1.7.7
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[server.jar:git-Spigot-a9631d2-56813c7]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-Spigot-a9631d2-56813c7]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [server.jar:git-Spigot-a9631d2-56813c7]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.PlayerList.disconnect(PlayerList.java:385) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.PlayerConnection.a(PlayerConnection.java:1061) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.NetworkManager.handleDisconnection(NetworkManager.java:318) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.ServerConnection.c(ServerConnection.java:174) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.MinecraftServer.D(MinecraftServer.java:832) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.DedicatedServer.D(DedicatedServer.java:399) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.MinecraftServer.C(MinecraftServer.java:673) [server.jar:git-Spigot-a9631d2-56813c7]
	at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:572) [server.jar:git-Spigot-a9631d2-56813c7]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_91]
Caused by: java.lang.NullPointerException
	at me.gnat008.perworldinventory.listeners.player.PlayerQuitListener.onPlayerQuit(PlayerQuitListener.java:69) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_91]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_91]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_91]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_91]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[server.jar:git-Spigot-a9631d2-56813c7]
	... 12 more