Message: "A system error has occurred" When Using or Creating a Nintendo Account
You are unable to reset your password, sign in, add family group members or create a Nintendo Account on accounts.nintendo.com, and the following message is displayed: "A system error has occurred".
What to Do:
It's possible that Nintendo Account services through https://accounts.nintendo.com are currently not working.
Please try again later.
Review the Network Maintenance Information/Operational Status page for the most up-to-date maintenance and server status information.