Synology 218+ with DSM 7 - NAS not detected

The Plex shared folder is left over from DSM 6.

On DSM 7, we don’t have sufficient privilege to remove it.
Also, it would be rude to delete it as many people have media stored there (which is OK to do now in DSM 7)

On DSM 7, effective 1.24.2.4973, PlexMediaServer is available per these release notes: