03:08:50 [SEVERE] Could not pass event McMMOPlayerLevelUpEvent to McMmoAp v1.0.4a
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:427)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
        at com.gmail.nossr50.skills.utilities.SkillTools.xpCheckSkill(SkillTools.java:240)
        at com.gmail.nossr50.datatypes.McMMOPlayer.applyXpGain(McMMOPlayer.java:115)
        at com.gmail.nossr50.datatypes.McMMOPlayer.beginUnsharedXpGain(McMMOPlayer.java:90)
        at com.gmail.nossr50.datatypes.McMMOPlayer.beginXpGain(McMMOPlayer.java:78)
        at com.gmail.nossr50.skills.fishing.Fishing.beginFishing(Fishing.java:132)
        at com.gmail.nossr50.listeners.PlayerListener.onPlayerFish(PlayerListener.java:169)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:479)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:464)
        at net.minecraft.server.v1_4_R1.EntityFishingHook.c(EntityFishingHook.java:337)
        at net.minecraft.server.v1_4_R1.ItemFishingRod.a(ItemFishingRod.java:16)
        at net.minecraft.server.v1_4_R1.ItemStack.a(ItemStack.java:86)
        at net.minecraft.server.v1_4_R1.PlayerInteractManager.useItem(PlayerInteractManager.java:350)
        at net.minecraft.server.v1_4_R1.PlayerConnection.a(PlayerConnection.java:631)
        at net.minecraft.server.v1_4_R1.Packet15Place.handle(SourceFile:58)
        at net.minecraft.server.v1_4_R1.NetworkManager.b(NetworkManager.java:290)
        at net.minecraft.server.v1_4_R1.PlayerConnection.d(PlayerConnection.java:115)
        at net.minecraft.server.v1_4_R1.ServerConnection.b(SourceFile:39)
        at net.minecraft.server.v1_4_R1.DedicatedServerConnection.b(SourceFile:30)
        at net.minecraft.server.v1_4_R1.MinecraftServer.r(MinecraftServer.java:589)
        at net.minecraft.server.v1_4_R1.DedicatedServer.r(DedicatedServer.java:224)
        at net.minecraft.server.v1_4_R1.MinecraftServer.q(MinecraftServer.java:485)
        at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:420)
        at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)
Caused by: java.lang.NoSuchMethodError: com.gmail.nossr50.events.experience.McMMOPlayerLevelUpEvent.getSkill()Lcom/gmail/nossr50/datatypes/SkillType;
        at me.tagette.mcmmoap.APLevelListener.McMMOPlayerLevelUpEvent(APLevelListener.java:36)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:425)
        ... 32 more