Помогите Ошибка в плагине

Поставил плагин custom death screen, но после того как я умираю, текст после смерти не появляется.
Лог консоли:

Спойлер

[12:40:58 ERROR]: Could not pass event PlayerDeathEvent to CustomDeathScreen v1.01
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 org.bukkit.craftbukkit.v1_8_R3.event.CraftEventFactory.callPlayerDeathEvent(CraftEventFactory.java:396) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.EntityPlayer.die(EntityPlayer.java:417) [server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.craftbukkit.v1_8_R3.entity.CraftLivingEntity.setHealth(CraftLivingEntity.java:87) [server.jar:git-Spigot-21fe707-e1ebe52]
at com.earth2me.essentials.commands.Commandkill.updatePlayer(Commandkill.java:47) [Essentials.jar:?]
at com.earth2me.essentials.commands.EssentialsLoopCommand.loopOnlinePlayers(EssentialsLoopCommand.java:132) [Essentials.jar:?]
at com.earth2me.essentials.commands.Commandkill.run(Commandkill.java:26) [Essentials.jar:?]
at com.earth2me.essentials.commands.EssentialsCommand.run(EssentialsCommand.java:192) [Essentials.jar:?]
at com.earth2me.essentials.Essentials.onCommandEssentials(Essentials.java:523) [Essentials.jar:?]
at com.earth2me.essentials.Essentials.onCommand(Essentials.java:402) [Essentials.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) [server.jar:git-Spigot-21fe707-e1ebe52]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchServerCommand(CraftServer.java:627) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.DedicatedServer.aO(DedicatedServer.java:412) [server.jar:git-Spigot-21fe707-e1ebe52]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:375) [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_201]
Caused by: java.lang.NoClassDefFoundError: org/bukkit/SoundCategory
at com.mirotcz.CDS.CDS.onPlayerDeathEvent(CDS.java:201) ~[?:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_201]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_201]
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:306) ~[server.jar:git-Spigot-21fe707-e1ebe52]
... 21 more

Конфиг плагина:

Спойлер

В чем может быть проблема?