Supervisor Daemon is not starting

I am trying to start one of my daemon in supervisor but it is not starting.

Hello, please check the Log to see the specific errors.

Where are the logs?
Moreover, custom applications do not belong to aaPanel.
See what's wrong with your application.

ERROR: Pidfile (celerybeat.pid) already exists.
Seems we're already running? (pid: 1627)

Please check the panel log, not the sending record