[15:06:30 WARN]: Failed to save player data for Goruk
[15:06:30 ERROR]: Could not pass event PlayerDropItemEvent to SkyWars v0.1
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[paper.jar:git-PaperSpigot-"8b18730"]
        at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:74) ~[paper.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[paper.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [paper.jar:git-PaperSpigot-"8b18730"]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.EntityHuman.a(EntityHuman.java:602) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.EntityHuman.drop(EntityHuman.java:559) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.Container.b(Container.java:454) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.ContainerPlayer.b(ContainerPlayer.java:79) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.EntityHuman.die(EntityHuman.java:1104) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.World.kill(World.java:1091) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.PlayerList.disconnect(PlayerList.java:376) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:875) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.NetworkManager.l(NetworkManager.java:314) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.ServerConnection.c(ServerConnection.java:145) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:875) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:378) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:713) [paper.jar:git-PaperSpigot-"8b18730"]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:616) [paper.jar:git-PaperSpigot-"8b18730"]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_91]
Caused by: java.lang.NullPointerException
        at br.com.skysurvival.games.skywars.game.Game.onDropItem(Game.java:1053) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor95.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_91]
        at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_91]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[paper.jar:git-PaperSpigot-"8b18730"]
        ... 19 more