Mythic Mob Config Error

Server Details:
Version: 1.11.2
Spigot

Error:

23.10 18:29:19 [Server] ERROR Could not pass event PlayerInteractEvent to MythicMobs v4.3.0 23.10 18:29:19 [Server] INFO org.bukkit.event.EventException 23.10 18:29:19 [Server] INFO at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:306) ~[spigot-1.11.2-20170429.jar:git-Spigot-28463de-a2af8f0] 23.10 18:29:19 [Server] INFO at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)...

Mythic Mob Config Error