Could not pass event EntityDeathEvent to Quests v4.0.5-b246 #1762

Mythicmobs verison : MythicMobs-4.4.1 and MythicMobsQuests-391-SNAPSHOT
Quests: Quests-4.0.5
Bug:
I did a quest that was killing pig mythicmobs, when I finished and received that quest, I went to kill pig but it shows error like this? . How do I fix it?
My error console : https://pastebin.com/EW4bqKu3
My pig mythicmobs : https://pastebin.com/x2ZjJqrm