https://www.gamespot.com/articles/psn-servers-down-again-for-lots-of-ps4-players-upd/1100-6456388/

[Update] Gaming and social services are slowly stabilizing. The PlayStation Network service page now lists them as online.

[Original story] For the third time this week, PlayStation Network is experiencing issues for users on PS4 and PS3. Account management and PlayStation Now are having trouble, but, more importantly, gaming and social services are also disrupted. This means that "you may have some difficulty launching games, applications or online features."