There were some issues with the network on Tuesday. Launching games, buying, download, and browsing games, and signing in to your account may have been impacted by the Sony hack.
Just a few hours after the release of Stray, there were issues. Sony didn't explain why there were problems, so I'm going to place the blame on the cute kitty The cat made a lot of noise.
It's unclear how widespread the issues were. There was a spike of user reports of problems on Downdetector, but things seemed to work well on my PS5 The cat might have been fed by someone at Sony.
Sony says that the service is back up and running.