I always start from the My Hubitat page and then remember that when you are not on the local network, Connect to Hub, will be greyed out, and you will need to use the Go to Remote Admin button in the Subscriptions box below to initiate the connection.
If you skipped a payment by more than 3 days, either because the payment was declined by your bank or you have suspended the service, and later restarted, the hub "thinks" you don't have a subscription, even though a new payment may have been processed more recently. The subscription should have been canceled altogether so you can re-subscribe. This is a known issue and submitting a case by visiting the above posted page will get your account sorted out so you can continue to use the service.
Thanks, we've got your case and restored your service. If I may suggest, I see that you've been using the Remote Admin service for nearly 2 years; I recommend signing up for the yearly service at the end of this month, to avoid service interruptions in the future.