walmartmoneycard.com/sticker activate my personalized walmartmoneycard

I wanted to activate my walmartmoneycard at walmartmoneycard.com/sticker but it says, "In order to protect your funds, your Personalized Visa Card is currently inactive. To activate your Personalized Visa Card the primary cardholder must log-in with the Personalized Walmart MoneyCard number." How do i do that?