[00:47:04] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to Sellwands v1.2
org.bukkit.event.EventException: null
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:316) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:66) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:507) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:492) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at org.bukkit.craftbukkit.v1_13_R2.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:304) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.PlayerInteractManager.a(PlayerInteractManager.java:458) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:1221) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.PacketPlayInUseItem.a(PacketPlayInUseItem.java:37) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:9) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_201]
	at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_201]
	at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) [spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:896) [spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:831) [spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:729) [spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.NullPointerException
	at hassan.sellwand.RightClick.onChestClick(RightClick.java:150) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor68.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_201]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_201]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:312) ~[spigot-1.13.2.jar:git-Spigot-f09662d-f40143e]
	... 17 more