SkKOG Error

[07:33:22 ERROR]: Could not load 'plugins\SkKOG.jar' in folder 'plugins'
org.bukkit.plugin.UnknownDependencyException: Skript
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:216) [server.jar:git-Spigot-1486]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugins(CraftServer.java:358) [server.jar:git-Spigot-1486]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.reload(CraftServer.java:822) [server.jar:git-Spigot-1486]
    at org.bukkit.Bukkit.reload(Bukkit.java:286) [server.jar:git-Spigot-1486]
    at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:24) [server.jar:git-Spigot-1486]
    at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:180) [server.jar:git-Spigot-1486]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchCommand(CraftServer.java:726) [server.jar:git-Spigot-1486]
    at org.bukkit.craftbukkit.v1_7_R3.CraftServer.dispatchServerCommand(CraftServer.java:713) [server.jar:git-Spigot-1486]
    at net.minecraft.server.v1_7_R3.DedicatedServer.aB(DedicatedServer.java:319) [server.jar:git-Spigot-1486]
    at net.minecraft.server.v1_7_R3.DedicatedServer.v(DedicatedServer.java:284) [server.jar:git-Spigot-1486]
    at net.minecraft.server.v1_7_R3.MinecraftServer.u(MinecraftServer.java:583) [server.jar:git-Spigot-1486]
    at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:489) [server.jar:git-Spigot-1486]
    at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [server.jar:git-Spigot-1486]