We have confirmed that there is currently an issue preventing some users from playing online modes. This issue occurs when an attempt to implement new Live Update data fails, causing the following error messages to be displayed:
• Communication Error CODE:SGJC733_0
• Unable to implement Live Update Data.
Restarting your PlayStation 4 console will allow you to play online modes if you encounter the issue.
We apologize sincerely for any inconvenience caused.