Issue during redash installation


While running script, an error pops out stating:
rm: cannot remove ‘/etc/nginx/sites-enabled/default’: No such file or directory

I am new to nginx. There is no default file in sites-enabled folder, but there is a default file in sites-available folder.
Is nginx not properly configured? Can someone guide me to the exact issue.

PFB logs:
2016-12-05 09:51:02 (104 MB/s) - ‘/etc/init.d/redash_supervisord’ saved [3612/3612]

Adding service: redash_supervisord (/etc/init.d/redash_supervisord).
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
LANGUAGE = (unset),
LC_ALL = (unset),
LANG = “en_US.UTF-8”
are supported and installed on your system.
perl: warning: Falling back to the standard locale (“C”).
System start/stop links for /etc/init.d/redash_supervisord already exist.
rm: cannot remove ‘/etc/nginx/sites-enabled/default’: No such file or directory