My Wii U have a error when I enter with Pretendo. What I do?

When I enter with my PNID to miiverse on my wii u, I recive a error. What I do? Thank you!

When I enter miiverse from my Wii U I get an error. What I do? Thank you!

Can I add aroma if I have tiramisu? Thank you!

I'm going to buy a Wii U and I have some questions: Can I use my PNID of the 3ds on the Wii U? Also, can I use pretendo in several profiles of the Wii U? Thank you!

happy new year!

¡Feliz navidad para todos! Que lo paseis guay

Merry christmas for all!