> [16:57:42 ERROR]: Could not pass event InventoryCreativeEvent to PvPPlugin v1.0
org.bukkit.event.EventException
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1776) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketPlayInSetCreativeSlot.a(SourceFile:23) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PacketPlayInSetCreativeSlot.a(SourceFile:9) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-Spigot-21fe707-e1ebe52]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_212]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:715) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [server.jar:git-Spigot-21fe707-e1ebe52]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.NullPointerException
at net.jacobpeterson.spigot.player.gui.PlayerGUIManager.getInventoryGUI(PlayerGUIManager.java:56) ~[?:?]
at net.jacobpeterson.spigot.gui.listener.InventoryGUIEventHandlers.handleOnInventoryClickEvent(InventoryGUIEventHandlers.java:55) ~[?:?]
at net.jacobpeterson.spigot.PluginListeners.onInventoryClickEvent(PluginListeners.java:67) ~[?:?]
at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_212]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_212]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[server.jar:git-Spigot-21fe707-e1ebe52]
... 15 more