Plex can no longer play my music or add new files (Synology)

[tom80H]

Your logs say that Plex doesn’t have permission to read the Music folder (/volume1/Media/Music/).
Can you confirm the system user PlexMediaServer has access to that share?

Synology FAQ - Questions, Answers, and a few How-To's

FAQ 19: Setting permissions to allow Plex access to media files Before beginning, it’s important to remember one key point; Plex doesn’t have any special privileges on Synology except for being able to access the Video Transcoding acceleration hardware. It cannot read any of your files unless you expressly grant permission. This is a fundamental principle of Linux (which Synology uses for DSM) Because of how Synology grants permission, access to files is broken into two different …