Moved to the tech chat as this is not addon related (console, login poroblems).
I'd try to contact ESO support and/or search in the web via search machines if anyone experienced the same/similar problems.
Unfortunately I cannot think of any reason than network issues or server problems.
Maybe try to restart your rooter.
Edit:
Found this on the official forums
https://forums.elderscrollsonline.com/en/
The PlayStation™ Network is currently experiencing a service interruption. Please check here for status updates:
https://status.playstation.com/en-us/