Problem seting up supervisor

This week i reinstall erpnext due some bugs that i thought that i could fix them with a fresh install…
but supervisor is not working correctly:
I’m getting the next errors:

bench setup production frappe
supervisor.conf already exists and this will overwrite it. Do you want to continue? [y/N]: y
Port configuration list:

Site erp.test.pro assigned port: 80
nginx.conf already exists and this will overwrite it. Do you want to continue? [y/N]: y
INFO:bench.utils:sudo /usr/local/bin/supervisorctl reread
Error: .ini file does not include supervisorctl section
For help, use /usr/local/bin/supervisorctl -h
INFO:bench.utils:sudo /usr/local/bin/supervisorctl reload
Error: .ini file does not include supervisorctl section
For help, use /usr/local/bin/supervisorctl -h
INFO:bench.utils:sudo systemctl restart supervisord
Failed to restart supervisord.service: Unit supervisord.service not found.
INFO:bench.utils:sudo systemctl restart supervisor
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
INFO:bench.utils:sudo systemctl reload nginx

So the main 2 problems are:

  1. Error: .ini file does not include supervisorctl section
  2. Failed to restart supervisord.service: Unit supervisord.service not found.

I tried to install supervisor with 3 commands without success:
apt-get install supervisor, python2.7 -m easy_install supervisor
and sudo pip install supervisor

Any ideas ?