Plex Media Server doesn't work

Hello,

I installed Plex Media Server but it doesn’t work. When I access it via a browser, I get the following error:

This site can’t be reached dietpi refused to connect.
Try:

Checking the connection
Checking the proxy and the firewall
ERR_CONNECTION_REFUSED

Checking the status of plexmediaserver gives me this:

root@DietPi:~# service plexmediaserver status
? plexmediaserver.service - Plex Media Server
   Loaded: loaded (/lib/systemd/system/plexmediaserver.service; disabled; vendor preset: enabled)
  Drop-In: /etc/systemd/system/plexmediaserver.service.d
           mqdietpi-group.conf
   Active: failed (Result: exit-code) since Mon 2019-05-13 21:36:57 PDT; 3min 15s ago
  Process: 3955 ExecStart=/bin/sh -c  PLEX_MEDIA_SERVER_INFO_VENDOR="$(grep ^NAME= /etc/os-release | awk -F= "{print \$2}" | tr -d \"
)"  PLEX_MEDIA_SERVER_INFO_DEVICE="PC"  PLEX_MEDIA_SERVER_INFO_MODEL="$(uname -m)"  PLEX_MEDIA_SERVER_INFO_PLATFORM_VERSION="$(grep ^V
ERSION= /etc/os-release | awk -F= "{print \$2}" | tr -d \" )"  LD_LIBRARY_PATH=/usr/lib/plexmediaserver/lib  "/usr/lib/plexmediaserver
/Plex Media Server" (code=exited, status=132)
  Process: 3951 ExecStartPre=/bin/sh -c /usr/bin/test -d "${PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR}" || /bin/mkdir -p "${PLEX_MEDIA
_SERVER_APPLICATION_SUPPORT_DIR}" (code=exited, status=0/SUCCESS)
 Main PID: 3955 (code=exited, status=132)

May 13 21:36:52 DietPi systemd[1]: plexmediaserver.service: Unit entered failed state.
May 13 21:36:52 DietPi systemd[1]: plexmediaserver.service: Failed with result 'exit-code'.
May 13 21:36:57 DietPi systemd[1]: plexmediaserver.service: Service hold-off time over, scheduling restart.
May 13 21:36:57 DietPi systemd[1]: Stopped Plex Media Server.
May 13 21:36:57 DietPi systemd[1]: plexmediaserver.service: Start request repeated too quickly.
May 13 21:36:57 DietPi systemd[1]: Failed to start Plex Media Server.
May 13 21:36:57 DietPi systemd[1]: plexmediaserver.service: Unit entered failed state.
May 13 21:36:57 DietPi systemd[1]: plexmediaserver.service: Failed with result 'exit-code'.

Any help with this problem will be appreciated.

You did already update to v6.23 (or now v6.24), right?

Please try to reinstall Plex:
apt install --reinstall plexmediaserver