I asked a friend of mine submit new ticket without registering to Traq
What page were you on?
Site -> "All tickets"
Describe the defect:
Ticket is shown on ticket list, but when I try to open ticket details (eg. click ticket link) as an Administrator, i get permission error "You don't have permission to view this page."
After reproducing this myself I have found that it's actually due to the "Private Ticket" option, which I will have fixed shortly.