Help. Stuck in Nightfall campaign.

Recently, I reacquired my account from my cousin who used my character to get through a portion of the Nightfall story missions. Since getting my account back, I have no idea where he left off. The most recent story mission completed is Kodonur Crossroads but I do not have any primary quests to show me where to go next. Also, if it helps, I do not yet have Margrid or Master of Whispers in my party so obviously I haven't done those quests yet. Does anyone have any idea what I should do to get the story moving?

Check with Lonan in the Sunspear Sanctuary, you may need the primary quest Mysterious Message.

I checked. He doesn't have any quests for me :/

Hmm, if you don't have Margrid nor MoW, maybe your cousin felt unsure which hero to choose and left it where the choice has to be made.

Are they waiting for you in front of the monument in Jahai Bluffs?

Where is this monument?

Just checked the Monument to the Defeat of Palawa Joko, if that's what you're talking about. They're not there :/

Check outside kodonur crossroads in dejarin estate. I know thats where the next quest is if he picks master of whispers and did that quest but didnt grab the next one.

Not sure where the same on is if he did pick magrid instead though.

EDIT: Can check the quest chain on wiki.

I did what you said and found the Master of Whispers but there's no quest from him. Does anyone know where I can find Margrid instead?

Based on what's been said so far I think your cousin chose Magrid but hasn't yet completed the quest that lets her join your party.

The suggestion to check the wiki is a good one.
Check the guild wiki mission thread to identify which town you need to go to for the mission.

Its been so long since I did it I cannot remember myself.

I got bored
Check mission "For a Price"
1 # Meet Margrid the Sly on the Marga Coast.

Yup. Met Margrid the Sly in Marga Coast outside of Yohlon Haven. Thanks for the help, guys.