Our login system partner, Auth0, experienced a major global outage from 11:40am EDT through 3:45pm EDT that impacted our users' ability to log in and authenticate to the Coding Rooms platform. The issue was addressed by Auth0, and our services immediately returned to stable use. For more information, please see Auth0's status page for this incident: https://status.auth0.com/incidents/zvjzyc7912g5