Please see this post. The app services are down right now for an upgrade:

4/22/23 maintenance on app, MyNissan, NissanConnect
OWNER NOTIFICATION Dear Nissan ARIYA Owner: Please be advised that the MyNissan app, MyNISSAN Owner Portal, and NissanConnect Services will not be available beginning Saturday, 4/22/2023 at 10:00 PM CST for scheduled maintenance and updates. These digital services will return to operation...