Error in backend container

[woutercoppens]

I'm trying to run SurfSense in containers via podman. The quadlets and env-files can be found at:
https://github.com/woutercoppens/Bluefin_Linux/tree/main/quadlets

The backend gives an error: [Errno -2] Name or service not known and restarts the container:

aug 21 12:06:51 aipc surfsense_backend[21159]: /usr/local/lib/python3.12/site-packages/chonkie/chunker/code.py:75: UserWarning: The language is set>
aug 21 12:06:51 aipc surfsense_backend[21159]: warnings.warn("The language is set to auto. This would adversely affect the performance of the c>
aug 21 12:06:51 aipc surfsense_backend[21159]: INFO:flashrank.Ranker:Downloading ms-marco-MiniLM-L-12-v2...
aug 21 12:06:51 aipc surfsense_backend[21159]: Downloading https://github.com/zackees/ffmpeg_bins/raw/main/v5.0/linux.zip -> /usr/local/lib/python3>
aug 21 12:06:51 aipc surfsense_backend[21159]:
aug 21 12:06:51 aipc surfsense_backend[21159]: Download of https://github.com/zackees/ffmpeg_bins/raw/main/v5.0/linux.zip -> /usr/local/lib/python3>
aug 21 12:06:51 aipc surfsense_backend[21159]: Extracting /usr/local/lib/python3.12/site-packages/static_ffmpeg/bin/linux.zip -> /usr/local/lib/pyt>
aug 21 12:06:51 aipc surfsense_backend[21159]: Loading FlashRankRanker model ms-marco-MiniLM-L-12-v2 (this message can be suppressed by setting ver>
aug 21 12:06:51 aipc surfsense_backend[21159]: Loading model FlashRank model ms-marco-MiniLM-L-12-v2...
aug 21 12:06:52 aipc surfsense_backend[21159]: [736B blob data]
aug 21 12:06:52 aipc surfsense_backend[21159]: INFO: Will watch for changes in these directories: ['/app/app']
aug 21 12:06:55 aipc surfsense_backend[21159]: INFO: Started server process [1]
aug 21 12:06:55 aipc surfsense_backend[21159]: INFO: Waiting for application startup.
aug 21 12:06:55 aipc surfsense_backend[21159]: INFO: Application startup complete.
aug 21 12:06:55 aipc surfsense_backend[21159]: ERROR: [Errno -2] Name or service not known
aug 21 12:06:55 aipc surfsense_backend[21159]: INFO: Waiting for application shutdown.
aug 21 12:06:55 aipc surfsense_backend[21159]: INFO: Application shutdown complete.
aug 21 12:06:56 aipc podman[21696]: 2025-08-21 12:06:56.964702181 +0200 CEST m=+8.690999104 container died d6c08c77dd4069b534a798e67394670b37091e06>
aug 21 12:06:57 aipc podman[21696]: 2025-08-21 12:06:57.424760885 +0200 CEST m=+9.151057798 container remove d6c08c77dd4069b534a798e67394670b37091e>
aug 21 12:06:57 aipc surfsense_backend[21696]: d6c08c77dd4069b534a798e67394670b37091e061e44cc4d5081fe8a174689d6
aug 21 12:06:57 aipc systemd[3351]: surfsense_backend.service: Main process exited, code=exited, status=1/FAILURE
░░ Subject: Unit process exited
░░ Defined-By: systemd
░░ Support: https://lists.freedesktop.org/mailman/listinfo/systemd-devel
░░
░░ An ExecStart= process belonging to unit UNIT has exited.
░░
░░ The process' exit code is 'exited' and its exit status is 1.
aug 21 12:06:57 aipc systemd[3351]: surfsense_backend.service: Failed with result 'exit-code'.`

How can I put the container in debug mode to see what is going on?