ProtocolLib Error

[11:35:53] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to IgnisAeterni v1.0
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.PlayerList.onPlayerJoin(PlayerList.java:263) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.PlayerList.a(PlayerList.java:148) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.LoginListener.b(LoginListener.java:109) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.LoginListener.c(LoginListener.java:41) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.NetworkManager.a(NetworkManager.java:159) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.ServerConnection.c(ServerConnection.java:82) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:785) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	at java.lang.Thread.run(Unknown Source) [?:1.7.0_71]
Caused by: java.lang.NoSuchMethodError: com.comphenix.protocol.events.PacketContainer.getBlockPositionModifier()Lcom/comphenix/protocol/reflect/StructureModifier;
	at com.comphenix.packetwrapper.WrapperPlayServerOpenSignEntity.setLocation(WrapperPlayServerOpenSignEntity.java:34) ~[?:?]
	at net.lepidus.SignGUI.open(SignGUI.java:81) ~[?:?]
	at net.lepidus.SignGUI.open(SignGUI.java:68) ~[?:?]
	at net.lepidus.IgnisAeterni.sendLobby(IgnisAeterni.java:625) ~[?:?]
	at net.lepidus.IgnisAeterni.joinPlayer(IgnisAeterni.java:564) ~[?:?]
	at net.lepidus.IgnisAeterni.onPlayerJoin(IgnisAeterni.java:260) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.7.0_71]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.7.0_71]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.7.0_71]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot.jar:git-Spigot-fa7cbf9-42ebec1]
	... 14 more
[11:35:53]