Container Jellyfin stopped unexpectedly

[PCDHOMEJELLY]

Hi. 
Having got entirely p****d off with Plex, I installed Jellyfin on my Synology NAS running DSM 7.2.
I followed the guide from Wundertech  How to Set Up Jellyfin on a Synology NAS - WunderTech
The guide set up the jellyfin container with a yml.
I created the yml with these lines

version: '3.5'
services:
  jellyfin:
    image: jellyfin/jellyfin
    container_name: jellyfin
    network_mode: 'host'
    volumes:
      - /volume1/docker/jellyfin/config:/config
      - /volume1/docker/jellyfin/cache:/cache
      - /volume1/Films:/Films
      - /volume1/TV-Series:/TV-Series
    restart: 'unless-stopped'
    environment:
      - TZ='America/Detroit'

As you can see, I have two media paths.

I created the container but when it is started it immediately stops with error message 'container jellyfin stopped unexpectedly' 
This happens each time I start jellyfin.

I was hoping to use Jellyfin to stream to my Nvidia Shield.

I'm sure it is an error on my part, but I can't track it down. Any help would be much appreciated. 

If any more information is needed, i'm happy to attempt to find it :-)

I attach settings-jellyfin.json and log-jellyfin.json and a screenshot of my file structure.

Thanks in advance.

[WWWesten]

For example, here's a working docker-compose.yml. I also have DSM 7.2.2.

Code:

group_add:
      - "937"

"937" is "videodriver" group in my DSM, replace with ID in Your system.

Code:

- JELLYFIN_PublishedServerUrl

enter Your value

Code:

extra_hosts:

don't worry, it still doesn't work

Code:

memory: 6g

 substitute value by Your RAM (g = GB)

Code:

- JELLYFIN_TRANSLITERATOR_ID=""

for disable the transliterator for searching subsytem (eg. cyrlilic Ч to Ch)

Code:

/dev/dri:/dev/dri

is mandatory for Hardware Acceleration