My checkout page is not working correctly. When I try to access I got this message:
"Sorry, but you do not have permission to upgrade this site. Only the site administrator can upgrade their site. Â« Choose a different site"
When I click "choose a different site" is says "This page doesn't seem to exist"
I have given support access from dashboard. In addition to my checkout page, please review my other pages and make sure I have everything I need to get this up and running.