jellyfin service failed

[oziely]

this is what i got from running the command:
Defined-By: systemd
Support: https://www.debian.org/support

Automatic restarting of the unit jellyfin.service has been scheduled, as the result for
the configured Restart= setting for the unit.
21 15:06:41 raspberrypi systemd[1]: Stopped Jellyfin Media Server.
Subject: A stop job for unit jellyfin.service has finished
Defined-By: systemd
Support: https://www.debian.org/support

A stop job for unit jellyfin.service has finished.

The job identifier is 8888 and the job result is done.
21 15:06:41 raspberrypi systemd[1]: jellyfin.service: Start request repeated too quickly.
21 15:06:41 raspberrypi systemd[1]: jellyfin.service: Failed with result 'signal'.
Subject: Unit failed
Defined-By: systemd
Support: https://www.debian.org/support

The unit jellyfin.service has entered the 'failed' state with result 'signal'.
21 15:06:41 raspberrypi systemd[1]: Failed to start Jellyfin Media Server.
Subject: A start job for unit jellyfin.service has failed
Defined-By: systemd
Support: https://www.debian.org/support

A start job for unit jellyfin.service has finished with a failure.

The job identifier is 8888 and the job result is failed.

-i have no folder of jellyfin in /var/log/.
-i installed it in my raspbian pi 4 with this guide: https://pimylifeup.com/raspberry-pi-jellyfin/