We have corrected the characters who were blocked from zones they could previously access in Azteca.
If you are level 75 or higher, and you are blocked from entering a zone that you could previously access, send an email to support@wizard101.com and provide the following information:
This may not work for every issue or anyone else, but it is worth mentioning.
I recently found myself blocked from going up the ramp in Alto Alto to the flower door. I went to the teleportal 3 points for Floating Mountains, went the reverse way through the flower door and down the ramp. I was able to get back up the ramp after that. :)