Problem with permissions when running/creating NZBGet container (newbie)

Hello!
I've just upgraded from a raspberry pi 3 to a 4, and from omv 3 (or maybe 4) to 5. On my last setup I had Docker working with some containers, but I cannot get it to work now, using the same settings as before.
So, I installed Docker and Portainer from the OMV-Extras GUI, then I pasted the docker-compose section from https://hub.docker.com/r/linuxserver/nzbget/ under Add stack in Portainer and replaced PUID, PGID with the values returned by id docker (uid=1001(docker) gid=100(users) groups=100(users),992(docker)).
The volumes I set as - /sharedfolders/Docker:/config and - /sharedfolders/Downloads:/downloads.
Lastly I pressed Deploy stack.
The log for nzbget reads:
"
[s6-init] making user provided files available at /var/run/s6/etc...exited 0.

[s6-init] ensuring user provided files have correct perms...exited 0.

[fix-attrs.d] applying ownership & permissions fixes...

[fix-attrs.d] done.

[cont-init.d] executing container initialization scripts...

[cont-init.d] 01-envfile: executing...

[cont-init.d] 01-envfile: exited 0.

[cont-init.d] 10-adduser: executing...

-------------------------------------

_ ()

| | ___ _ __

| | / __| | | / \

| | \__ \ | | | () |

|_| |___/ |_| \__/

Brought to you by linuxserver.io

We gratefully accept donations at:

https://www.linuxserver.io/donate/

-------------------------------------

GID/UID

-------------------------------------

User uid: 1001

User gid: 100

-------------------------------------

[cont-init.d] 10-adduser: exited 0.

[cont-init.d] 30-config: executing...

[cont-init.d] 30-config: exited 0.

[cont-init.d] 99-custom-files: executing...

[custom-init] no custom files found exiting...

[cont-init.d] 99-custom-files: exited 0.

[cont-init.d] done.

[services.d] starting services

[services.d] done.

[INFO] nzbget 21.0 server-mode
"

Sorry, couldn't figure out how to make that look better...
Anyone with the patience to tell me where and how to look for where I did bad?

Ok, thanks, but using absolute paths (eg /srv/dev-disk-by-label-Hubbn/Docker/) gives me the exact same log.

Also, I've made sure that the user "docker" (that I created for this) has full access to and is the owner of both folders and subfolders.

Here it is:

root@raspberrypi:/srv/dev-disk-by-label-Hubbn/Docker# ls -al
total 2408
drwxrwx--x+ 3 docker users 4096 Jan 8 18:13 .
drwxrwxrwx 13 root root 4096 Oct 3 22:17 ..
-rw-rw----+ 1 docker users 307 Jan 8 15:05 config.xml
drwxrwx--x+ 2 docker users 4096 Jan 8 15:05 logs
-rw-r-----+ 1 docker users 32768 Jan 8 18:13 logs.db
-rw-r-----+ 1 docker users 299008 Jan 8 16:58 nzbdrone.db
-rw-r-----+ 1 docker users 32768 Jan 8 18:38 nzbdrone.db-shm
-rw-r-----+ 1 docker users 1998232 Jan 8 18:37 nzbdrone.db-wal
-rw-rw----+ 1 docker users 3 Jan 8 15:05 nzbdrone.pid
-rw-r-----+ 1 docker users 66898 Jan 8 14:34 nzbget.conf

And by "made sure" I mean that I went to shared folders in the gui, and then used "Privileges" to put a check mark in the box for Read/Write for the user Docker, and "ACL" to check the Read/Write box for docker both in user and system accounts and set owner to docker under extra options and applied permissions to files and subfolders.

/config points to /srv/dev-disk-by-label-Hubbn/Docker. Output of ls -al in that folder is in post number 6 above.

/downloads points to /srv/dev-disk-by-label-Hubbn/Downloads. Output of ls -al in that folder follows here:

root@raspberrypi:/srv/dev-disk-by-label-Hubbn/Downloads# ls -al
total 1770908
drwxrwsrwx+ 9 docker users 4096 Jan 8 19:34 .
drwxrwxrwx 14 root root 4096 Jan 8 19:24 ..
drwxrwsrwx+ 3 docker users 12288 Jul 11 2017 SAB
drwxrwsrwx+ 3 docker users 4096 May 13 2018 docker
drwxrwsrwx+ 3 docker users 4096 May 10 2018 home
drwxrwsrwx+ 28 docker users 4096 Dec 2 23:12 intermediate
drwxrwsrwx+ 2 docker users 32768 Dec 30 20:02 nzb
-rwxrwxrwx+ 1 docker users 1812847329 Jan 8 19:25 nzbget.log
drwxrwsrwx+ 2 docker users 266240 Dec 30 20:02 queue
drwxrwsrwx+ 2 docker users 4096 Dec 2 22:59 tmp

Please tell me if I'm using ls -al command incorrectly!

I just realized I used both of these folders in the old installation, I'll just try once with clean newly created folders.

Nope, didn't work with fresh folders either...

Oh, sorry, my bad!

Here it is:

root@raspberrypi:/srv/dev-disk-by-label-Hubbn# ls -al
total 74484
drwxrwxrwx 15 root root 4096 Jan 8 19:38 .
drwxr-xr-x 7 root root 4096 Dec 17 20:38 ..
drwxrwsrw-+ 46 root users 12288 Feb 7 2017 Barnfilm
drwx------ 4 root root 4096 Apr 25 2016 'Bilder som ingen någonsin kommer orka rensa i'
-rw-rw-rw- 1 root root 15724454 Oct 9 2016 CPbackup
drwxrwx--x+ 3 docker users 4096 Jan 8 19:13 Docker
drwxrwsr-x+ 2 docker users 4096 Jan 8 19:41 Docker2
drwxrwsrwx+ 9 docker users 4096 Jan 8 19:34 Downloads
drwxrwsr-x+ 9 root users 4096 Sep 18 2017 Emulation
drwxrws---+ 229 root users 16384 Jun 16 2018 Musik
drwxrws---+ 3 root users 4096 Oct 14 2016 Musikfilm
drwxrwsr-x+ 5 docker users 4096 Jan 8 19:25 NZBGet
drwx--S--- 6 root users 4096 Dec 22 2011 Noter
-rw-rw-rw- 1 root root 2467657 Jul 9 2016 SABbackup
drwxrws---+ 11 root users 4096 Jan 8 19:34 Safe
drwxrwsrw-+ 27 root users 4096 Nov 16 18:42 TV
-rw------- 1 root root 57921087 Jul 12 2013 'Video 2013-07-09 12 30 12.mov'
-rw------- 1 root root 9216 Dec 27 19:22 aquota.group
-rw------- 1 root root 7168 Dec 27 19:22 aquota.user
drwx------ 2 root root 16384 Apr 26 2016 lost+found

Oh, no, I'm too stupid...
I was trying to access the web interface at the wrong ip-adress, and when that didn't work I checked the logs and thought that the first line ([s6-init] making user provided files available at /var/run/s6/etc...exited 0.) was the last line and an error message about permissions.
Anyway, it's been working all this time, and I'm very grateful for the time you wasted on me!