With our migration to the new platform SFTP uploads were replaced by regular FTP access.
Your FTP username is:
your-member-name-in-lower-case@lightburner.com
and your password remain the same like it was for SFTP.

For instance, if your username at Lightburner was
Alex123
your new FTP username will be
alex123@lightburner.com

Login and go to “Upload” page if you want to verify your FTP credentials.