Reinstallation of PlexMediaServer does not work properly

Thanks for the reply, to correct my question
The system version number of synology is: DSM 7.2-64570 Update 1
The Plex Media Server downloaded from Plex website is: PlexMediaServer-1.32.6.7371-b6a09ad81-x86_64_DSM7.spk

I uninstalled and reinstalled it in the same way as

FAQ 9: Uninstalling PMS - Completely start over

The problems are the same

  1. After Plex Media Server installation, it will create PlexMediaServer file in the shared folder.
  2. synology DSM does not have any PlexMediaServer related content in the Control Panel under User Accounts and User Groups.
  3. The local port of PlexMediaServer is empty in the Control Panel of synology DSM.

Repeat the installation many times and still have this problem.