If it's been more than a year, you'll need to register as a new player. If you played last year or you card is about to expire, claim your profile and register online or in the app. See the instructions below or link to the registration.
If you recently renewed and need to claim your profile, you can do so once your record has been imported, which should be very soon. Once you claim your profile, you can begin using the app instead of your card.
For those who were imported into the new system either because they recently registered or registered last year, instructions are below for the app or online.