Azure Active Directory Multi Factor Authentication

Trying to log in using an Azure Active Directory database, and I get the error
AADSTS50076: Due to a configuration change made by your administrator, or because you moved to a new location, you must use multi-factor authentication to access {id}

This is in an ASP.NET web application that currently works great logging in with Auth0’s database - trying to add Azure Active Directory login along with the current database.