PS4 Issue Redeeming More Than 5 Golden Keys

Howdy Vault Hunters

I redeemed my code, got 5 of them for Borderlands 2. But now I get this error, “To continue to redeem SHiFT codes, please launch a SHiFT-enabled title first!” from the SHIFT website (which is dramatically faster than in game). I’m playing Borderlands 2 now, Ive confirmed my account. Not clear on what Im missing?

Thanks
Jin