Console Error

[05:05:54] [Server thread/INFO]: Warp_AfkExp has reached the goal [Sky's the Limit]
[05:06:23] [Server thread/ERROR]: Could not pass event InventoryClickEvent to MMOItems v4.4.1
org.bukkit.event.EventException: null
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:309) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:500) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:485) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:2126) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.PacketPlayInWindowClick.a(SourceFile:33) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.PacketPlayInWindowClick.a(SourceFile:10) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.a(SourceFile:10) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_161]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_161]
    at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:895) [my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:830) [my.jar:git-Spigot-82e117e-2b2d084]
    at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:728) [my.jar:git-Spigot-82e117e-2b2d084]
    at java.lang.Thread.run(Thread.java:748) [?:1.8.0_161]
Caused by: java.lang.IllegalArgumentException: Negative, non outside slot -1
    at com.google.common.base.Preconditions.checkArgument(Preconditions.java:168) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at org.bukkit.inventory.InventoryView.getInventory(InventoryView.java:216) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at org.bukkit.event.inventory.InventoryClickEvent.getClickedInventory(InventoryClickEvent.java:167) ~[my.jar:git-Spigot-82e117e-2b2d084]
    at net.Indyuce.mmoitems.listener.DisableInteractions.a(DisableInteractions.java:24) ~[?:?]
    at sun.reflect.GeneratedMethodAccessor57.invoke(Unknown Source) ~[?:?]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_161]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_161]
    at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[my.jar:git-Spigot-82e117e-2b2d084]
    ... 15 more