Cyberduck keeps failing on this file and files like it.
In the Cyberduck browser this file is listed as "Symbolic Link (File). When I mount the FTP volume on my desktop (MacOS 10.4.11) then this link is properly converted to an alias pointing to the original folder or file (in this case).
For whatever reason in several cases Cyberduck does not seem to be able to handle this file properly...
The behavior currently is that the target file of the symbolic link is downloaded instead of the symbolic link being created locally, which is what is intended in most cases. Refer to #1860. The error you report, is most probably caused because the target of the symbolic link does not exist.