As you may have seen on our 2K Support Twitter page, NBA 2K19's servers will be discontinued as of December 31, 2020.
Players will no longer be able to play ranked or online league games. Accordingly, any mode that earns or uses VC will be affected, along with any other online function (such as the MyTEAM mode and online matches against other players).
As of January 1st, 2022 this game will no longer be available for purchase. Players who already own it will still be able to redownload and play offline modes, of course.