[04:05:08] [Server thread/ERROR]: Could not pass event InventoryCloseEvent to McDuels v16.6.0
org.bukkit.event.EventException
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:309) ~[duels.jar:git-TacoSpigot-bf023c7d]
    at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[duels.jar:git-TacoSpigot-bf023c7d]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[duels.jar:git-TacoSpigot-bf023c7d]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:508) [duels.jar:git-TacoSpigot-bf023c7d]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:493) [duels.jar:git-TacoSpigot-bf023c7d]
    at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.handleInventoryCloseEvent(CraftEventFactory.java:901) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.EntityPlayer.closeInventory(EntityPlayer.java:807) [duels.jar:git-TacoSpigot-bf023c7d]
    at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.teleport(CraftPlayer.java:561) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:262) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.PacketPlayInFlying.a(SourceFile:126) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.PacketPlayInFlying$PacketPlayInPositionLook.a(SourceFile:18) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [duels.jar:git-TacoSpigot-bf023c7d]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_201]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201]
    at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:785) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:427) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:724) [duels.jar:git-TacoSpigot-bf023c7d]
    at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:627) [duels.jar:git-TacoSpigot-bf023c7d]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.NullPointerException
    at me.stevie212.McDuels.Managers.PlayersDataManager.getPlayer(PlayersDataManager.java:17) ~[?:?]
    at me.stevie212.McDuels.Managers.StatsManager.getLanguageP(StatsManager.java:248) ~[?:?]
    at me.stevie212.McDuels.Managers.MessagesManager.Message(MessagesManager.java:19) ~[?:?]
    at me.stevie212.McDuels.Listeners.KitSelectorListener.onInventoryClose3(KitSelectorListener.java:123) ~[?:?]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_201]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_201]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_201]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:307) ~[duels.jar:git-TacoSpigot-bf023c7d]
    ... 19 more