Hey, Jalvsan.
I see that you had your credit card replaced recently, and you need to update your AppleCare plan. You also mention your subscriptions, and I'm happy to help.
How to manage your AppleCare plan
"Manage an AppleCare plan that's paid monthly
If you pay for your AppleCare plan on a monthly basis, you can manage the plan from your iOS device, Mac, or PC. Your AppleCare plan uses the payment information that's linked to your Apple ID. Learn how to change your Apple ID payment information."
Change or remove your Apple ID payment information -- This article provides the information and steps that you need to change your Apple ID payment method.
If your payment method is declined in the App Store or iTunes Store -- Since you mentioned subscriptions, there may have been a subscription payment missed. If you're unable to change your Apple ID payment information, the information in this article can help.
Cheers!