error

[xSapientia]

[04:29:25 WARN]: java.util.NoSuchElementException: packet_handler
[04:29:25 WARN]: at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1119)
[04:29:25 WARN]: at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:260)
[04:29:25 WARN]: at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:249)
[04:29:25 WARN]: at com.sucy.skill.packet.PacketInjector.addPlayer(PacketInjector.java:81)
[04:29:25 WARN]: at java.lang.Iterable.forEach(Unknown Source)
[04:29:25 WARN]: at java.util.Collections$UnmodifiableCollection.forEach(Unknown Source)
[04:29:25 WARN]: at com.sucy.skill.listener.PacketListener.init(PacketListener.java:22)
[04:29:25 WARN]: at com.sucy.skill.SkillAPI.onEnable(SkillAPI.java:194)
[04:29:25 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[04:29:25 WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)
[04:29:25 WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:403)
[04:29:25 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:381)
[04:29:25 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:330)
[04:29:25 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.reload(CraftServer.java:752)
[04:29:25 WARN]: at org.bukkit.Bukkit.reload(Bukkit.java:525)
[04:29:25 WARN]: at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:27)
[04:29:25 WARN]: at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141)
[04:29:25 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchCommand(CraftServer.java:648)
[04:29:25 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.dispatchServerCommand(CraftServer.java:634)
[04:29:25 WARN]: at net.minecraft.server.v1_12_R1.DedicatedServer.aP(DedicatedServer.java:444)
[04:29:25 WARN]: at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:407)
[04:29:25 WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:679)
[04:29:25 WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:577)
[04:29:25 WARN]: at java.lang.Thread.run(Unknown Source)