Hi Kristin, Thanks for contacting us and sorry to hear that you’ve run into this problem!
Some users are experiencing issues with upgrading from certain web browsers (in particular Internet Explorer). We are working to fix this, but in the meantime you can upgrade from a different web browser (Firefox, Chrome, Safari etc.), or from another computer.
Alternatively, if you contact us here we can send you an account specific link to upgrade from any web browser or mobile device.
This issue is only affecting upgrading and you can still edit from Internet Explorer.
Let us know if you need any further assistance!