Jibri Service Active failed

I have tried to install the recording feature with Jibri by following this tutorial, perhaps I missed something in the jibri.conf file, and I was not able to register my recorder in the step 13. Now my service is still not working, any help would much be appreciated.

root@nam:/var/log/jitsi/jibri# service jibri status
● jibri.service - Jibri Process
     Loaded: loaded (/etc/systemd/system/jibri.service; enabled; vendor preset: enabled)
     Active: failed (Result: exit-code) since Tue 2021-03-09 23:17:35 +07; 2s ago
    Process: 53609 ExecStart=/opt/jitsi/jibri/launch.sh (code=exited, status=143)
    Process: 53626 ExecStop=/opt/jitsi/jibri/graceful_shutdown.sh (code=exited, status=7)
   Main PID: 53609 (code=exited, status=143)

Thg 3 09 23:17:35 jitsi.namvdo.com graceful_shutdown.sh[53627]:                                  Dload  Upload   Total   Spent    Left  Spe>
Thg 3 09 23:17:35 jitsi.namvdo.com graceful_shutdown.sh[53627]: [158B blob data]
Thg 3 09 23:17:35 jitsi.namvdo.com graceful_shutdown.sh[53627]: curl: (7) Failed to connect to 127.0.0.1 port 3333: Connection refused
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: jibri.service: Control process exited, code=exited, status=7/NOTRUNNING
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: jibri.service: Main process exited, code=exited, status=143/n/a
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: jibri.service: Failed with result 'exit-code'.
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: Stopped Jibri Process.
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: jibri.service: Start request repeated too quickly.
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: jibri.service: Failed with result 'exit-code'.
Thg 3 09 23:17:35 jitsi.namvdo.com systemd[1]: Failed to start Jibri Process.

could you find any solution,i have same problem.