You’re showing me a screenshot of the logs. Having the full logs ZIP file would be better but, in this case, you provided enough information for me to answer.
I suspect you have a lot of well-curated (structured) media in your Plex server.
Depending on the Linux kernel used, you can run out of inotify slots without realizing.
– Pre-5.0 kernels have a default limit of 8192 directories
– Post-5.0 kernels have a default limit of 65536 directories
The transcoder needs 2 inotify slots when transcoding any Dolby audio.
(The software they provide requires it).
The solution for you is to:
- Count up the total number of directories you have in use for your media
- Round up to the next multiple of 32768 (or 65536 if you have ample memory)
- Customize the kernel configuration.
Here is the How-To