You didn't originally say which directory that is you posted a screenshot of in your first post.
It contains the executable/log folders 2024.* and data and the symlink latest which you show should be in /mnt/cache/appdata/channels-dvr
It also contains your DVR recording folders Database, Images, Imports, Logs, Streaming and TV which you show should be in /mnt/cachetwo/ChannelsDVR/Recordings
The only thing I can think of is maybe at one point you chose /channels-dvr as your DVR folder in the web UI, instead of /shares/DVR
Leave the 2024.* directories alone. They are older versions of the executables and Channels will delete the oldest one when you update it to a new version. It will always keep the 6 most recent.