Hi and welcome 🙂
It says here
that you find the priest in your camp
Also you can check in there if you did all steps before that.
If you are one step further than that, you should visit Isis‘ temple, as far as I can see.
You can check out the solutions here
Maps link and video link on the right side for each location.
Support should reply to you today or tomorrow at the latest. If not, please post your ticket number in here and I will have it checked.