Hi there aavaalexanderr,
Thanks for stopping by the Apple Support Communities.
If you are receiving a prompt that you have an active subscription, there would be two reasons for it. Either your Apple ID has an active subscription, or you're the family organizer of a Family Share group and someone else in the group has one. In either scenario, you will need to enter your payment information in order to continue downloading apps, even if the apps are free: If you need to change or update your Apple ID payment method - Apple Support
You can use the information in If you want to cancel a subscription from Apple - Apple Support to help confirm whether you have an active subscription on your Apple ID, and to learn how to cancel it if you need to.
Best!