[17:00:25] [Craft Scheduler Thread - 236/ERROR]: Could not pass event InventoryCloseEvent to Jetpacks v1.6.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.handleInventoryCloseEvent(CraftEventFactory.java:838) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at net.minecraft.server.v1_8_R3.EntityPlayer.closeInventory(EntityPlayer.java:787) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.craftbukkit.v1_8_R3.entity.CraftHumanEntity.closeInventory(CraftHumanEntity.java:343) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at eu.blockup.GlobalChestShop.Util.GUI.Core.GuiCore.close_InventoyGUI(GuiCore.java:271) [GlobalChestShop.jar:?]
	at eu.blockup.GlobalChestShop.Util.GUI.Core.GuiCore.open_InventoyGUI(GuiCore.java:236) [GlobalChestShop.jar:?]
	at eu.blockup.GlobalChestShop.Util.GUI.Core.GUIs.InventoryGUI.refresh(InventoryGUI.java:428) [GlobalChestShop.jar:?]
	at eu.blockup.GlobalChestShop.Util.GUI.Core.GuiCore$2.run(GuiCore.java:243) [GlobalChestShop.jar:?]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftAsyncTask.run(CraftAsyncTask.java:53) [spigot.jar:git-Spigot-f928e7a-e91aed8]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [?:1.8.0_45]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [?:1.8.0_45]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Caused by: java.lang.IllegalStateException: Asynchronous player tracker update!
	at org.spigotmc.AsyncCatcher.catchOp(AsyncCatcher.java:14) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at net.minecraft.server.v1_8_R3.EntityTrackerEntry.updatePlayer(EntityTrackerEntry.java:313) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at net.minecraft.server.v1_8_R3.EntityTracker.a(EntityTracker.java:207) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at net.minecraft.server.v1_8_R3.EntityPlayer.B(EntityPlayer.java:1041) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at net.minecraft.server.v1_8_R3.EntityPlayer.updateAbilities(EntityPlayer.java:934) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.setFlySpeed(CraftPlayer.java:1187) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	at me.powerofpickle.Jetpack.Main.jetpackAdd(Main.java:262) ~[?:?]
	at me.powerofpickle.Jetpack.Main.onInventoryClose(Main.java:326) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor322.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_45]
	at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot.jar:git-Spigot-f928e7a-e91aed8]
	... 15 more