Multiple programs in supervisor

I'm deploying a Django app in a virtual environment and I'm using supervisor for the app itself and some Celery tasks. When my /etc/supervisor/conf.d/project is like this:

[program:botApp]
command = /home/ubuntu/gunicorn_start.bash;
user = ubuntu;
stdout_logfile = /home/ubuntu/logs/gunicorn_supervisor.log;
redirect_stderr = true;
environment=LANG=en_US.UTF-8,LC_ALL=en_US.UTF-8;

it works fine, I do sudo systemctl restart supervisor and I can see it running properly, but when I add my second program in the same configuration file like this:

[program:botApp]
command = /home/ubuntu/gunicorn_start.bash;
user = ubuntu;
stdout_logfile = /home/ubuntu/logs/gunicorn_supervisor.log;
redirect_stderr = true;
environment=LANG=en_US.UTF-8,LC_ALL=en_US.UTF-8;

[program:worker]
command=/home/ubuntu/django_env/bin/celery -A botApp worker -l info;
user=ubuntu;
numprocs=1;
stdout_logfile=/home/ubuntu/logs/celeryworker.log;
redirect_stderr = true;
autostart=true;
autorestart=true;
startsecs=10;
stopwaitsecs = 600 ;
killasgroup=true;
priority=998;

it throws the following error:

● supervisor.service - Supervisor process control system for UNIX


Loaded: loaded (/lib/systemd/system/supervisor.service; enabled; vendor preset: enabled)
   Active: activating (auto-restart) (Result: exit-code) since Tue 2018-09-04 08:09:26 UTC; 12s ago
     Docs: http://supervisord.org
  Process: 21931 ExecStop=/usr/bin/supervisorctl $OPTIONS shutdown (code=exited, status=0/SUCCESS)
  Process: 21925 ExecStart=/usr/bin/supervisord -n -c /etc/supervisor/supervisord.conf (code=exited, status=2)
 Main PID: 21925 (code=exited, status=2)

Sep 04 08:09:26 ip-172-31-45-13 systemd[1]: supervisor.service: Unit entered failed state.
Sep 04 08:09:26 ip-172-31-45-13 systemd[1]: supervisor.service: Failed with result 'exit-code'.

I have tried changing the second program to be the same as the first one with different name and log file and it throws the same error. Do I need to do something extra for using 2 programs with supervisor? Many thanks.

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