[02:12:09] [Server thread/ERROR]: Could not pass event InventoryClickEvent to ShopGUIPlus v1.6.10
org.bukkit.event.EventException: null
	at org.bukkit.plugin.EventExecutor$1.execute(EventExecutor.java:46) ~[jfr.jar:git-Paper-1190]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[jfr.jar:git-Paper-1190]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[jfr.jar:git-Paper-1190]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:514) ~[jfr.jar:git-Paper-1190]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:499) ~[jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.PlayerConnection.a(PlayerConnection.java:1934) ~[jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:33) ~[jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.PacketPlayInWindowClick.a(SourceFile:10) ~[jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.PlayerConnectionUtils.lambda$ensureMainThread$0(PlayerConnectionUtils.java:14) ~[jfr.jar:git-Paper-1190]
	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_74]
	at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_74]
	at net.minecraft.server.v1_12_R1.SystemUtils.a(SourceFile:46) [jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:843) [jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:424) [jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:767) [jfr.jar:git-Paper-1190]
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:665) [jfr.jar:git-Paper-1190]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_74]
Caused by: java.lang.NullPointerException
	at net.brcdev.shopgui.listener.PlayerListener.onInventoryClick(PlayerListener.java:286) ~[?:?]
	at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor340.execute(Unknown Source) ~[?:?]
	at org.bukkit.plugin.EventExecutor$1.execute(EventExecutor.java:44) ~[jfr.jar:git-Paper-1190]
	... 16 more