Nick here from Shopify.
This seems odd for sure. Just to confirm have you selected a plan and paid for your latest bill? It's difficult to know what exactly might be going on without taking a closer look or seeing your store or a screenshot of what you see also.
We created a community FAQ topic going through some possible scenarios to why this might be which you can check out here. Do you feel it could be any of the scenarios in the FAQ?
We’re not able to provide account-specific support via the Shopify Community at this time, but if you'd like to talk to someone in real-time via live chat, email, or callback don't hesitate to visit our support team here and log in to your account to create a support request.