JedCore Watercombo Error

[20:34:41 ERROR]: Could not pass event PlayerToggleSneakEvent to ProjectKorra v1.7.0 BETA 13
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[craftbukkit.jar:git-Bukkit-e8c6403]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-e8c6403]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit.jar:git-Bukkit-e8c6403]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1134) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.PacketPlayInEntityAction.a(SourceFile:43) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.PacketPlayInEntityAction.a(SourceFile:9) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [craftbukkit.jar:git-Bukkit-e8c6403]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.7.0_79]
	at java.util.concurrent.FutureTask.run(FutureTask.java:262) [?:1.7.0_79]
	at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:19) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:676) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:335) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:632) [craftbukkit.jar:git-Bukkit-e8c6403]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:540) [craftbukkit.jar:git-Bukkit-e8c6403]
	at java.lang.Thread.run(Thread.java:745) [?:1.7.0_79]
Caused by: java.lang.NoClassDefFoundError: com/projectkorra/rpg/WorldEvents
	at com.jedk1.JedCore.combos.WaterFlow.<init>(WaterFlow.java:69) ~[?:?]
	at com.jedk1.JedCore.combos.WaterFlowCombo.createNewComboInstance(WaterFlowCombo.java:48) ~[?:?]
	at com.projectkorra.projectkorra.ability.combo.ComboManager.addComboAbility(ComboManager.java:153) ~[?:?]
	at com.projectkorra.projectkorra.PKListener.onPlayerSneak(PKListener.java:1062) ~[?:?]
	at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source) ~[?:?]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.7.0_79]
	at java.lang.reflect.Method.invoke(Method.java:606) ~[?:1.7.0_79]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[craftbukkit.jar:git-Bukkit-e8c6403]
	... 15 more