hello there is a problem with the upnp / dlna client, it shows that the folder is empty! although vlc shows the folder that you need
What type of files are you expecting to see here?
Can you try browsing this share through the Add Files menu (iOS/macOS or the Shares menu (Apple TV) to see if these files show up?
If you press add files, the message folder is empty on the screen. file types .mkv, .mp4. Dnla server used by torrserv for synology