I deleted the entire Plex package from my DDS220J and I am wondering which package to manually install? I don't know what the processor is or exactly where to get the install package. Any help is appreciated.
To find the right package to install it's best to go to the Synology Download Center site and select your NAS. Then go to the Packages tab and hover your cursor over a download link. The linked file will be named with the info you need to go and select the right package from Plex.tv.
You'll see that most package download filenames include the text 'armv8'. This will be the one you need. Here's the download link for Audio Station for the DS220j.