Description
A possible backup copy of a directory was found on your web server. These files are usually created by developers to backup their work.
Remediation
Remove the file(s) if they are not required on your website. As an additional step, it is recommended to implement a security policy within your organization to disallow creation of backup files in directories accessible from the web.
References
Testing for Old, Backup and Unreferenced Files (OWASP-CM-006)