PSN account won't let me sign in on my PS VITA?

[Jan]

I'm trying to add my friends on my PS vita but it won't let me see sign in. in the settings it says I'm signed in but when i was i go to the app on the "friends it won't let me sign in. it just keeps saying
"could not connect to the server or device within the time limit. (NP-5719-2)"
and when i try to do it again it sends me into it but won't let me see the friends i already had. it just says "An error has occurred. (E-82f001f7)" and then it will say "Could not connect to server. (NW-8942-3)"

im starting to get frustrated someone please help me.

I've also did what the "suggest actions" are i did them twice.

and i know my intent is working because i can still go on Facebook and youtube.