Suddenly my administration login is asking for email address instead of user name. Before this happened, I cleaned the logs and optimized the DB in Admin. Is that why it has changed?
I am running 2.12
Thank you for your request.
The most probable reason is that the User e-mail is used as login setting was enabled on the page Administration > Settings > General in your CS-Cart administration panel. If so, please clear this check box and click the Save button to require a username as a login instead of an e-mail address.
Please check it.
CS-Cart Support team