Permission denied: file: /usr/lib/python2.7/socket.py

[barredterra]

trafficstars

bench restart --supervisor
$ supervisorctl restart frappe:
error: <class 'socket.error'>, [Errno 13] Permission denied: file: /usr/lib/python2.7/socket.py line: 228
ERROR: 
Traceback (most recent call last):
  File "/home/frappe_itbox/.local/bin/bench", line 8, in <module>
    sys.exit(cli())
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/cli.py", line 121, in cli
    raise e
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/cli.py", line 111, in cli
    bench_command()
  File "/usr/local/lib/python3.6/dist-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/usr/local/lib/python3.6/dist-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/usr/local/lib/python3.6/dist-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/usr/local/lib/python3.6/dist-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/usr/local/lib/python3.6/dist-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/commands/utils.py", line 26, in restart
    Bench(".").reload(web, supervisor, systemd)
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/utils/render.py", line 110, in wrapper_fn
    return fn(*args, **kwargs)
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/bench.py", line 142, in reload
    restart_supervisor_processes(bench_path=self.name, web_workers=web)
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/utils/bench.py", line 267, in restart_supervisor_processes
    bench.run(f"supervisorctl restart {group}")
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/bench.py", line 43, in run
    return exec_cmd(cmd, cwd=cwd or self.cwd)
  File "/home/frappe_itbox/.local/lib/python3.6/site-packages/bench/utils/__init__.py", line 126, in exec_cmd
    raise CommandFailedError
bench.exceptions.CommandFailedError