[ERROR] Could not pass event PlayerNickEvent to EazyNick v1.233

org.bukkit.event.EventException

at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:310) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.dev.nickplugin.commands.BookNickCommand.onCommand(BookNickCommand.java:145) [EazyNick%20-%20NickSystem%20-%20by%20Justix.jar:?]

at org.bukkit.command.PluginCommand.execute(PluginCommand.java:44) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:641) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1162) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.minecraft.server.v1_8_R3.PlayerConnection.chat(PlayerConnection.java:1078) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.craftbukkit.v1_8_R3.entity.CraftPlayer.chat(CraftPlayer.java:237) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.dev.nickplugin.commands.BookGUICommand$1.onEditComplete(BookGUICommand.java:148) [EazyNick%20-%20NickSystem%20-%20by%20Justix.jar:?]

at net.dev.nickplugin.utils.signutils.SignGUI$1$2$1.run(SignGUI.java:115) [EazyNick%20-%20NickSystem%20-%20by%20Justix.jar:?]

at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftTask.run(CraftTask.java:71) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at org.bukkit.craftbukkit.v1_8_R3.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:723) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:374) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:654) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:557) [spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

at java.lang.Thread.run(Thread.java:813) [?:1.8.0_212]

Caused by: java.lang.NoClassDefFoundError: net/luckperms/api/LuckPermsProvider

at net.dev.nickplugin.api.NickManager.updateLuckPerms(NickManager.java:498) ~[?:?]

at net.dev.nickplugin.listeners.NickListener.onNick(NickListener.java:43) ~[?:?]

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_212]

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_212]

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_212]

at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_212]

at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.8.8.jar:git-Spigot-21fe707-e1ebe52]

... 19 more