Several days ago I did Naxitilor's quest to start the sequence for getting into the Tomb of Kings. Once I did that, I received the Necklace of Diligence and went to the Shrine of Singularity. There I started answering the questions, but missed the count of virtues. (I said 7, but correct answer is 8.) It wouldn't let me try again; a guildmate told me I had to wait 12 hours. It's way past 12 hours, and now nothing happens when I click the shrine. I'm ready to answer the questions, but they aren't offered. I am carrying the necklace and even tried wearing it -- still nothing. I went back to Naxtilor and he won't talk to me; he just says he can't offer me the quest again. So now I'm stuck in some sort of halfway point. Can someone tell me what I'm missing?