The Mamool Ja Society quest "Fruit of Friendship" lists "Kajeel Ja" as the NPC to talk to, both on the display in the quest list and as the Objective when turning in the quest, but the NPC is named Kageel Ja. Kajeel Ja exists, but is an NPC in Tuliyollal, not Mamook.
I saw this same discrepancy earlier, possibly with the same quest, but I didn't catch exactly which one it was (if it did occur on a different quest).