Bukkit

Summary:Basicly everytime i do /d soemthing it just takes a while says im disguised on the console it says lots of code and other people dont see the /disguise

DisguiseCraft version:
v#.# Build #59

CraftBukkit version:
CB-1.7.9-R4

Console Log (if any):
[08:23:25 WARN]: [DisguiseCraft] Task #6992 for DisguiseCraft v5.1 generated an exception
java.lang.NoSuchMethodError: net.minecraft.server.v1_7_R4.PacketPlayOutPlayerInfo.<init>(Ljava/lang/String;ZI)V
    at pgDev.bukkit.DisguiseCraft.packet.DCPacketGenerator.getPlayerInfoPacket(DCPacketGenerator.java:331) ~[?:?]
    at pgDev.bukkit.DisguiseCraft.DisguiseCraft$5.run(DisguiseCraft.java:589) ~[?:?]
    at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftTask.run(CraftTask.java:71) ~[craftbukkit.jar:git-Spigot-1642]
    at org.bukkit.craftbukkit.v1_7_R4.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [craftbukkit.jar:git-Spigot-1642]
    at net.minecraft.server.v1_7_R4.MinecraftServer.v(MinecraftServer.java:641) [craftbukkit.jar:git-Spigot-1642]
    at net.minecraft.server.v1_7_R4.DedicatedServer.v(DedicatedServer.java:289) [craftbukkit.jar:git-Spigot-1642]
    at net.minecraft.server.v1_7_R4.MinecraftServer.u(MinecraftServer.java:584) [craftbukkit.jar:git-Spigot-1642]
    at net.minecraft.server.v1_7_R4.MinecraftServer.run(MinecraftServer.java:490) [craftbukkit.jar:git-Spigot-1642]
    at net.minecraft.server.v1_7_R4.ThreadServerApplication.run(SourceFile:628) [craftbukkit.jar:git-Spigot-1642]
Paste log here
<</code>>

Steps to reproduce:
1./d something
2.look at console
3.then you see...

List of plugins also on the server:NoMoreHunger,WorldEdit,EmptyWorldGenerator,AdminFun,Essentials,Lockette,SilkSpawners,ProtocolLib,PunishMental,EssentialsProtect,DropParty,EssentialsChat,EssentialsAntiBuild,iConomy,CommandWatcher,Admin_Powertools,Vault,EssentialsSpawn,Lores,DisguiseCraft,ChestShop,StackableItems,PlotMe,SimpleRename,Multiverse-Core,Shopkeepers,SimplePrefix,AncientGates,ServerSign,HolographicDisplays,IslandWorld

Additional information:If you need to contact me im most likely on skype : green.johnnypolo1 im at school at 8am-4pm Central time

How long you been running spigot 1.7.9?

How long have you had disguise craft?

Did it work before on the same versions?