После того как запущу серв у меня в консоле вот такая дичь появляется время от времени вроде как после захода или выхода игрока [20:52:46] [Server thread/ERROR]: Could not pass event InventoryCloseEvent to uSeller v1.0.0
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory.handleInventoryCloseEvent(CraftEventFactory.java:1312) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:2204) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.PacketPlayInCloseWindow.a(PacketPlayInCloseWindow.java:20) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.PacketPlayInCloseWindow.a(PacketPlayInCloseWindow.java:1) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:28) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.TickTask.run(SourceFile:18) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeTask(SourceFile:144) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeNext(SourceFile:118) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.MinecraftServer.bb(MinecraftServer.java:1061) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.MinecraftServer.executeNext(MinecraftServer.java:1054) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeAll(SourceFile:103) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.MinecraftServer.sleepForTick(MinecraftServer.java:1037) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:970) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$0(MinecraftServer.java:273) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
at (Unknown Source) [?:1.8.0_351]
Caused by: java.lang.NoSuchMethodError: org.bukkit.inventory.Inventory.getTitle()Ljava/lang/String;
at ua.slava.ukraine.EventListener.onClose(EventListener.java:104) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_351]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_351]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_351]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_351]
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[server.jar:3096a-Spigot-9fb885e-af1a232]
… 19 more
За такое по мордасам! Давать надо