Prism NPE

2020-03-30 17:13:21 [ERROR] Could not pass event InventoryClickEvent to Prism v2.1.6-SNAPSHOT-118
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:319) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.PlayerConnection.a(PlayerConnection.java:2148) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.PacketPlayInWindowClick.a(SourceFile:32) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.PacketPlayInWindowClick.a(SourceFile:10) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.TickTask.run(SourceFile:18) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.MinecraftServer.ba(MinecraftServer.java:918) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.MinecraftServer.executeNext(MinecraftServer.java:911) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.MinecraftServer.sleepForTick(MinecraftServer.java:895) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:828) [custom.jar:git-Spigot-a03b1fd-95bd423]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_191]
Caused by: java.lang.NullPointerException
	at net.minecraft.server.v1_15_R1.InventoryEnderChest.getLocation(InventoryEnderChest.java:18) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventory.getLocation(CraftInventory.java:524) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	at me.botsko.prism.listeners.PrismInventoryEvents.onInventoryClick(PrismInventoryEvents.java:122) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor270.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:315) ~[custom.jar:git-Spigot-a03b1fd-95bd423]
	... 17 more