[21:07:47] [Async Chat Thread - #10/ERROR]: Could not pass event AsyncPlayerChatEvent to Shop v1.1.2
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PlayerConnection.chat(PlayerConnection.java:1057) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:995) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_51]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_51]
	at java.lang.Thread.run(Unknown Source) [?:1.7.0_51]
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source) ~[?:1.7.0_51]
	at java.util.HashMap$KeyIterator.next(Unknown Source) ~[?:1.7.0_51]
	at me.Conjurate.shop.ShopInterface.cancelMessageReceive(ShopInterface.java:335) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor589.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	... 11 more
[21:07:47] [Async Chat Thread - #10/INFO]: [NinjaVolador]: lol
[21:07:47] [Async Chat Thread - #10/ERROR]: Could not pass event AsyncPlayerChatEvent to Shop v1.1.2
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:484) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PlayerConnection.chat(PlayerConnection.java:1057) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:995) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at net.minecraft.server.v1_8_R3.PacketPlayInChat$1.run(PacketPlayInChat.java:39) [spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.7.0_51]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:1.7.0_51]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:1.7.0_51]
	at java.lang.Thread.run(Unknown Source) [?:1.7.0_51]
Caused by: java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(Unknown Source) ~[?:1.7.0_51]
	at java.util.HashMap$KeyIterator.next(Unknown Source) ~[?:1.7.0_51]
	at me.Conjurate.shop.ShopInterface.cancelMessageReceive(ShopInterface.java:335) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor589.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_51]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_51]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot_1.8.7_b3c0272-7723b90.jar:git-Spigot-b3c0272-7723b90]
	... 11 more