Having problems with entry to worlds after being able to enter them prior:
Let’s check a few things: are you a member?… if you are and can’t get into the worlds… have you quested into them prior? If the answer is yes, then I would contact support at https://www.wizard101.com/CustomerSupport/game
Now if you had not quested into the worlds, I would look for the quest to permit entrance, this as being a member.