the pretendo servers is not working?

anywone help me i am having error 001-0502 and only my miiverse works

anywone help me only my miiverse is working on 3ds my friends say that i am offline and online games dont work

anywone help me my friends is not working

now i am on 3ds

anywone help me my wii u is so laggy

if you see this you are my friend!