Error 008-0502 when setting age for SpotPass

I’ve been trying to use Swapnote and mess around with friends, however, I need to set my age in parental controls. When it connects to the internet to verify, it gives me error code 008-0502.

Is there a known solution for this? I can’t find anything online.

Thank you in advance.

You need to switch back to Nintendo in Nimbus. I doubt Pretendo supports the parental verification.