There is a problem connecting to PlayStation™Network. Please try the following steps:
Check the PSN status page to see if there are any issues.
Restart your PlayStation®4 console.
Perform an Internet connection test by selecting Settings > Network > Test Internet Connection. Review and configure your network settings again if necessary.
Turn off your router, wait at least 5 minutes, then restart it.
This may be a temporary issue. Please try again after a while.