According to IGN, PlayStation online network service PSN is currently in a downtime.
PSN Hong Kong Service
According to Downdetector, PSN has been affected by downtime since at least 6 p.m. ET.The PlayStation Network service page also shows that all services from login to play to PlayStation Store have been closed.
It is not clear when PSN service will resume, but this downtime means that PS players will not be able to play games including Marvel Conquer, Call of Duty, Fortnite, etc. this weekend.
We will release the latest news after the service is restored.Currently, no other platforms have reported downtime, so this seems to be unique to PSN.
PSN Japanese server
PSN American service
Sony has officially released a message: "The PlayStation network is no longer available at present. We apologize for the inconvenience caused. We are currently investigating and carrying out recovery work, please be patient."