Receiving the error "This email has not configured login providers. Please contact your support" when attempting to login to Nova via the invitation links:
The user is attempting to log in to accept the invitation using the incorrect link, which should be the following:
https://account.nova.quest.com/invites
Ask the user to try to accept it by using a web browser in incognito mode or from different web browsers, computers, and network connections, and also make sure that the invitation process is followed as instructed in the User Guide documentation.