The subscription should renew automatically every year. If you have cancelled your account, you will need to resubscribe.
You do not need a Report and Run account to subscribe.
Report and Run: Cloud
If you have a automatically renewing subscription, you won't need to do anything.
If you have a pre-paid subscription, you can resubscribe from the web portal.
If you subscribed from within the mobile app, then you need to resubscribe from the same platform (iOS or Android) where you made the original subscription.