I’ve been using Freedombox for years until a few days ago when the microSD broke on my Raspberry 3B. When installing it again as always done, the shared folders with Samba are inaccessible, and Minidlna does not find the path, although the service is working. anyone else has had this problem?
Try accessing minidlna using local IP and port http://192.168.0.106:8200. Also make sure that the network interface is configured as internal. Does the Samba app diagnostics pass without errors?
On MiniDLNA config page: Home > Apps > MiniDLNA https://freedombox.local/plinth/apps/minidlna/
Have you configured the “Media Files Directory” for MiniDLNA to use Samba share: /var/lib/freedombox/shares/group_share