Błąd w konsoli

[16:05:14] [Server thread/ERROR]: Could not pass event BlockBreakEvent to Essentials v2.16.1.154
org.bukkit.event.EventException: null
at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:320) ~[server.jar:git-Spigot-9de398a-9c887d4]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[server.jar:git-Spigot-9de398a-9c887d4]
at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:529) ~[server.jar:git-Spigot-9de398a-9c887d4]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:514) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PlayerInteractManager.breakBlock(PlayerInteractManager.java:295) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PlayerInteractManager.a(PlayerInteractManager.java:254) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PlayerInteractManager.a(PlayerInteractManager.java:230) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PlayerConnection.a(PlayerConnection.java:1185) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PacketPlayInBlockDig.a(SourceFile:40) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PacketPlayInBlockDig.a(SourceFile:10) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.TickTask.run(SourceFile:18) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeTask(SourceFile:144) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeNext(SourceFile:118) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.MinecraftServer.aX(MinecraftServer.java:910) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.MinecraftServer.executeNext(MinecraftServer.java:903) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.IAsyncTaskHandler.executeAll(SourceFile:103) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.MinecraftServer.sleepForTick(MinecraftServer.java:886) [server.jar:git-Spigot-9de398a-9c887d4]
at net.minecraft.server.v1_14_R1.MinecraftServer.run(MinecraftServer.java:820) [server.jar:git-Spigot-9de398a-9c887d4]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_141]
Caused by: java.lang.ClassCastException
[16:05:20] [Server thread/WARN]: Can't keep up! Is the server overloaded? Running 5030ms or 100 ticks behind