RP Spawner Shop

[03:23:33] [Server thread/ERROR]: Could not pass event InventoryClickEvent to RandomPackage v16.4.2
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:529) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:514) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:2133) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.PacketPlayInWindowClick.a(SourceFile:33) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.PacketPlayInWindowClick.a(SourceFile:10) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:909) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:902) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:886) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:819) [spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_222]
Caused by: java.lang.NullPointerException
	at me.randomhashtags.randompackage.addons.usingfile.FileShopCategory.getInventory(FileShopCategory.java:42) ~[?:?]
	at me.randomhashtags.randompackage.api.Shop.viewCategory(Shop.java:208) ~[?:?]
	at me.randomhashtags.randompackage.api.Shop.inventoryClickEvent(Shop.java:115) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_222]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_222]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_222]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_222]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:316) ~[spigot-1.14.4.jar:git-Spigot-e5b1b5d-e5e8eec]
	... 17 more