Yes, it doesn't allow access right after you get AOR; it is better to wait 48-72 hours or until you get the tracker email. In my case, 5 days had passed since AOR, and I just gave it a shot as soon as the tracker went back up again. I got the same error when I tried on mobile, but it worked on desktop.Perhaps it just doesn't allow access for the first few days after getting AOR? I'm having the same issue, but AOR only just received.