Easel Pro is a subscription service, so it will continue to renew unless the subscription is canceled (similar to streaming subscription services). If the payment information you have on file after activating the license is valid, by default, your subscription will be set to automatically renew to continue your access to Easel Pro.
If you need to activate a remaining Easel Pro Product Key (discontinued), you can learn more about that here: How do I activate my Easel Pro Product Key?
You can review your Easel Pro status and any upcoming/pending subscription renewal transactions via the "Account" tab when logged in to your account.
If you do not want to be charged for this automatically, you can cancel your subscription prior to it renewing. You also have the option to enter a new payment method. For more information on how to manage an Easel Pro account, check out this article: Easel Pro Account FAQ.