Skellet Error

[10:58:32 ERROR]: Could not pass event PlayerJoinEvent to Skellett v1.9.6b
org.bukkit.event.EventException: null
	at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:72) ~[patched_1.12.2.jar:git-Paper-1316]
	at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:78) ~[patched_1.12.2.jar:git-Paper-1316]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[patched_1.12.2.jar:git-Paper-1316]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:515) [patched_1.12.2.jar:git-Paper-1316]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:500) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.PlayerList.onPlayerJoin(PlayerList.java:370) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.PlayerList.a(PlayerList.java:183) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.LoginListener.b(LoginListener.java:175) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.LoginListener.e(LoginListener.java:65) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.NetworkManager.a(NetworkManager.java:254) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.ServerConnection.c(ServerConnection.java:150) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.MinecraftServer.D(MinecraftServer.java:940) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.DedicatedServer.D(DedicatedServer.java:426) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.MinecraftServer.C(MinecraftServer.java:767) [patched_1.12.2.jar:git-Paper-1316]
	at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:665) [patched_1.12.2.jar:git-Paper-1316]
	at java.lang.Thread.run(Thread.java:745) [?:1.8.0_66]
Caused by: java.util.NoSuchElementException: packet_handler
	at io.netty.channel.DefaultChannelPipeline.getContextOrDie(DefaultChannelPipeline.java:1089) ~[patched_1.12.2.jar:git-Paper-1316]
	at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:260) ~[patched_1.12.2.jar:git-Paper-1316]
	at io.netty.channel.DefaultChannelPipeline.addBefore(DefaultChannelPipeline.java:249) ~[patched_1.12.2.jar:git-Paper-1316]
	at com.gmail.thelimeglass.Utils.Packets.PacketListener.create(PacketListener.java:70) ~[?:?]
	at com.gmail.thelimeglass.Utils.Packets.PacketListener.onJoin(PacketListener.java:22) ~[?:?]
	at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor101.execute(Unknown Source) ~[?:?]
	at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:70) ~[patched_1.12.2.jar:git-Paper-1316]
	... 15 more

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