Spam w konsolce

Cześć, mógłby mi ktoś pomóc? W konsolce mam taki spam:

 

[12:47:30] [Server thread/ERROR]: Could not pass event InventoryCreativeEvent to Otchlan v0.2
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:319) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.PlayerConnection.a(PlayerConnection.java:2304) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.PacketPlayInSetCreativeSlot.a(SourceFile:23) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.PacketPlayInSetCreativeSlot.a(SourceFile:9) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.TickTask.run(SourceFile:18) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.MinecraftServer.ba(MinecraftServer.java:918) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.MinecraftServer.executeNext(MinecraftServer.java:911) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.IAsyncTaskHandler.awaitTasks(SourceFile:127) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.MinecraftServer.sleepForTick(MinecraftServer.java:895) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:828) [spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_201]
Caused by: java.lang.NoSuchMethodError: org.bukkit.inventory.Inventory.getTitle()Ljava/lang/String;
at me.mateusz.abyss.Listeners.onInventoryClick(Listeners.java:13) ~[?:?]
at sun.reflect.GeneratedMethodAccessor661.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:315) ~[spigot-1.15.2.jar:git-Spigot-2f5d615-d07a78b]
... 17 more