[20:40:04 ERROR]: Error occurred while enabling StrikePractice v0.5.1 (Is it up to date?)
java.util.NoSuchElementException: packet_handler
        at net.minecraft.util.io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:905) ~[PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.util.io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:160) ~[PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.util.io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:153) ~[PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at ga.strikepractice.packetlistener.channel.older.CManagerOlder.injectPlayer(CManagerOlder.java:31) ~[?:?]
        at ga.strikepractice.packetlistener.channel.older.CManagerOlder.registerAllPlayers(CManagerOlder.java:54) ~[?:?]
        at ga.strikepractice.StrikePractice.registerAllPlayers(StrikePractice.java:444) ~[?:?]
        at ga.strikepractice.StrikePractice.onEnable(StrikePractice.java:248) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) ~[PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:412) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.loadPlugin(CraftServer.java:477) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.enablePlugins(CraftServer.java:395) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.reload(CraftServer.java:868) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.Bukkit.reload(Bukkit.java:301) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:23) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:181) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at org.bukkit.craftbukkit.v1_7_R4.CraftServer.dispatchCommand(CraftServer.java:766) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.PlayerConnection.handleCommand(PlayerConnection.java:1047) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.PlayerConnection.a(PlayerConnection.java:884) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.PacketPlayInChat.a(PacketPlayInChat.java:28) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.PacketPlayInChat.handle(PacketPlayInChat.java:65) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.NetworkManager.a(NetworkManager.java:189) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.ServerConnection.c(ServerConnection.java:81) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:551) [PaperSpigot.jar:git-PaperSpigot-1f7d532]
        at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [PaperSpigot.jar:git-PaperSpigot-1f7d532]