Unlock Auction House. If the auction house is greyed out past the first season of the prologue then it is an issue with the game communicating with the auction house servers. However, these cards may not be as easy to come by for everyone.
Unfortunately, if players aren't careful, they can accidentally purchase vehicles for more. When first entering into the nba 2k22 myteam mode, the auction house will be locked for everyone. Players will need to collect a total of 30 cards in their lifetime agenda.