[09:30:16 ERROR]: Could not pass event PlayerTeleportEvent to ASkyBlock v3.0.6.3
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.entity.CraftPlayer.teleport(CraftPlayer.java:444) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at com.earth2me.essentials.Teleport.now(Teleport.java:139) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.Teleport.teleport(Teleport.java:198) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.Teleport.warp(Teleport.java:255) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.commands.Commandwarp.warpUser(Commandwarp.java:111) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.commands.Commandwarp.run(Commandwarp.java:46) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:146) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:471) [EssentialsX-2.0.1.jar:?]
        at com.earth2me.essentials.Essentials.onCommand(Essentials.java:381) [EssentialsX-2.0.1.jar:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at org.bukkit.craftbukkit.v1_9_R2.CraftServer.dispatchCommand(CraftServer.java:646) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.PlayerConnection.handleCommand(PlayerConnection.java:1349) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.PlayerConnection.a(PlayerConnection.java:1184) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_121]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_121]
        at net.minecraft.server.v1_9_R2.SystemUtils.a(SourceFile:45) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:726) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564) [spigot.jar:git-Spigot-c6871e2-0cd0397]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_121]
Caused by: java.lang.NullPointerException
        at com.wasteofplastic.askyblock.Island.getIgsFlag(Island.java:766) ~[?:?]
        at com.wasteofplastic.askyblock.listeners.PlayerEvents.onPlayerTeleport(PlayerEvents.java:791) ~[?:?]
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_121]
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_121]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_121]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_121]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-c6871e2-0cd0397]
        ... 28 more