[22:27:42 ERROR]: Could not pass event InventoryClickEvent to CoinFlip v1.0
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[craftbukkit.jar:git-Bukkit-b105298]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-b105298]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit.jar:git-Bukkit-b105298]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1537) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:31) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(SourceFile:9) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [craftbukkit.jar:git-Bukkit-b105298]
        at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_111]
        at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_111]
        at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:19) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:672) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:335) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:628) [craftbukkit.jar:git-Bukkit-b105298]
        at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:536) [craftbukkit.jar:git-Bukkit-b105298]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_111]
Caused by: java.lang.NoSuchMethodError: org.bukkit.event.inventory.InventoryClickEvent.getClickedInventory()Lorg/bukkit/inventory/Inventory;
        at me.icodetits.coinflip.listeners.CoinFlipGUI.onClick(CoinFlipGUI.java:79) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor64.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_111]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_111]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[craftbukkit.jar:git-Bukkit-b105298]