Error to connect pretendo servers in 3ds

Hello guys.
I don´t know why I am having problems to connect Pretendo servers, I am constantly getting 022-2402 error trying to loggin in nintendo network and in MIIverse too. I tried to play some world levels in mario maker but I can´t even see the words (error 002-0150). what could be wrong? I’ve copied all the files in the memory, I checked correctly the charts in luma menu, I linked correctly in pretendo network and I installed the CIA as well. thank you for the support. It’s my first time doing this by the way.