I would propably not use docker commands from shell, you’re supposed to use the truenas gui, which has a build in way to deploy compose yaml.
Sadly that option is kind of hidden away. If you navigate to the apps section in the gui top right corner big blue “discover apps” button and then click on the three dots next to the blue custom app button. That should open a window where you can paste in your compose files or you follow this version
which saves the yaml on a dataset but deploys it via truenas gui
If it fails to deploy from the gui you can check with
sudo cat /var/log/app_lifecycle.log
why it failed.