Mythic Mobs Error #2

[19:30:28] [Server thread/INFO]: [MythicMobs] Loading MythicMobs for Bukkit v1_8_R3 (Minecraft 1.8)...
[19:30:28] [Server thread/ERROR]: Error occurred while enabling MythicMobs v2.4.0 (Is it up to date?)
java.lang.NoSuchMethodError: de.slikey.effectlib.EffectManager.<init>(Lorg/bukkit/plugin/Plugin;)V
	at net.elseland.xikage.MythicMobs.Compatibility.EffectLibSupport.<init>(EffectLibSupport.java:20) ~[?:?]
	at net.elseland.xikage.MythicMobs.Compatibility.CompatibilityHandler.Initialize(CompatibilityHandler.java:50) ~[?:?]
	at net.elseland.xikage.MythicMobs.MythicMobs.onEnable(MythicMobs.java:163) ~[?:?]
	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:340) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugin(CraftServer.java:357) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.enablePlugins(CraftServer.java:317) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.s(MinecraftServer.java:414) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.k(MinecraftServer.java:378) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.a(MinecraftServer.java:333) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:263) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:525) [spigot188.jar:git-Spigot-e4d4710-e1ebe52]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_60]