Failed to start Jellyfin (code=exited, status=217/USER)

[Zyperspace]

- Running Jellyfin 10.8.10
- Debian Repository on a Raspberry Pi 4 Model B 4GB

DISCLAIMER: I'm a total Linux noob and new to this.

Full explanation: Whenever I try to start Jellyfin.service, which it tries to automatically upon launching my Raspberry, I get a bunch of errors and messages. They are not exactly encouraging from what I can tell. It was working fine a week ago, then I tried to follow a Reverse Proxy guide, and halfway through I had to leave. Now, 5 days later, Jellyfin won't even start and I don't know why. Maybe I deleted or am missing something?

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Active: failed (Result: exit-code) since [some time today]; 8 min ago
Process: 972 ExecStart=/opt/jellyfin/jellyfin.sh (code=exited, status=217/USER)
Main PID: 972 (code=exited, status=217/USER)
CPU: 3ms

: jellyfin.service: Failed with result 'exit-code'.
: jellyfin.service: Scheduled restart job, restart counter is at 5.
: Stopped Jellyfin
: jellyfin.service: Start request repeated too quickly.
: jellyfin.service: Failed with result 'exit-code'.
: Failed to start Jellyfin
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I'm at a loss for what to do, have been poking about at various forums and threads I could find by searching, but nothing I could make use of or figure out myself. Thanks beforehand.

Log is attached:

  jellyfin20230702.txt (Size: 13.7 KB / Downloads: 68)