Maeria - Heavens Tear Arc User

Thanks haiku, I checked over the quest list and I really have done every quest up to, but not including, the level 19 cultivation quest.

Aged Deity? I never came across an NPC named that. Where can I find him/her?

I've done every single quest apart from the level 19 cultivation quest and I have 101 reputation. It must be a bug but I have no idea how or why it appeared. What makes it weirder is that my friend did the quest just fine yesterday.

It has to be a bug but I have no clue how it happened. What's even weird is that my friend was able to complete the quest fine just yesterday.