Issues related to PlayStation are now standard these days, like when the PS5 store is not working. Why not just create a long-run backup server before even making changes to the main server.
To fix the PS5 store not working unless it’s not on maintenance, the first step you can do is to close and reopen your Playstation store. If the problem still exists then try to restart your PlayStation and also restart your wifi router or try to reconnect with the same wifi or different wifi.
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