[KONSOLA] Błędy.

Siemanko, ostatnio zauważyłem 2 błędy w konsoli mojego serwera, (bardzo zaśmiecają konsole) i mam pytanie jak można je naprawić a o to błędy:

[21:22:05] [Server thread/WARN]: [sTablist] Task #18 for sTablist v3.0.0-pre5 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Bukkit.getServerName()Ljava/lang/String;
        at me.jul1an_k.tablist.bukkit.variables.VariableManager.replaceTab(VariableManager.java:100) ~[?:?]
        at me.jul1an_k.tablist.global.api.impl.bukkit.tablistapi.TablistAPI_NMS.sendTabList(TablistAPI_NMS.java:54) ~[?:?]
        at me.jul1an_k.tablist.bukkit.Tablist.lambda$startUpdate$0(Tablist.java:150) ~[?:?]
        at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftTask.run(CraftTask.java:81) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at org.bukkit.craftbukkit.v1_16_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:400) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.b(MinecraftServer.java:1060) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.DedicatedServer.b(DedicatedServer.java:355) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.a(MinecraftServer.java:1008) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:847) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]











[21:22:44] [Server thread/ERROR]: Could not pass event PlayerInteractEvent to BeastWithdraw v2.8.1
org.bukkit.event.EventException: null
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:319) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:589) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:576) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at org.bukkit.craftbukkit.v1_16_R3.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:481) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.PlayerInteractManager.a(PlayerInteractManager.java:447) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.PlayerConnection.a(PlayerConnection.java:1356) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.PacketPlayInUseItem.a(PacketPlayInUseItem.java:27) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.PacketPlayInUseItem.a(PacketPlayInUseItem.java:1) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:19) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.TickTask.run(SourceFile:18) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeTask(SourceFile:144) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandlerReentrant.executeTask(SourceFile:23) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.executeNext(SourceFile:118) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.bb(MinecraftServer.java:942) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.executeNext(MinecraftServer.java:935) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.IAsyncTaskHandler.awaitTasks(SourceFile:127) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.sleepForTick(MinecraftServer.java:919) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.w(MinecraftServer.java:851) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at net.minecraft.server.v1_16_R3.MinecraftServer.lambda$0(MinecraftServer.java:164) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_281]
Caused by: java.lang.IllegalArgumentException: No enum constant org.bukkit.Material.EXP_BOTTLE
        at java.lang.Enum.valueOf(Unknown Source) ~[?:1.8.0_281]
        at org.bukkit.Material.valueOf(Material.java:1) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        at me.mraxetv.beastwithdraw.listener.XpBottleRedeem.mainHand(XpBottleRedeem.java:45) ~[?:?]
        at sun.reflect.GeneratedMethodAccessor134.invoke(Unknown Source) ~[?:?]
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_281]
        at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_281]
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:315) ~[server.jar:2991-Spigot-018b9a0-f3f3094]
        ... 20 more