Failed to start FreeRADIUS high performance RADIUS server

[Б. Мөнхжаргал]

Hi

[root at localhost ~]# systemctl restart radiusd.service
Job for radiusd.service failed because the control process exited with
error code. See "systemctl status radiusd.service" and "journalctl -xe" for
details.
[root at localhost ~]# systemctl status radiusd.service
● radiusd.service - FreeRADIUS high performance RADIUS server.
   Loaded: loaded (/usr/lib/systemd/system/radiusd.service; enabled; vendor
preset: disabled)
   Active: failed (Result: exit-code) since Tue 2019-04-02 19:11:34 +08;
23s ago
  Process: 6622 ExecStartPre=/usr/sbin/radiusd -C (code=exited,
status=1/FAILURE)
  Process: 6621 ExecStartPre=/bin/chown -R radiusd.radiusd /var/run/radiusd
(code=exited, status=0/SUCCESS)

Apr 02 19:11:34 localhost.localdomain systemd[1]: Starting FreeRADIUS high
perform....
Apr 02 19:11:34 localhost.localdomain systemd[1]: radiusd.service: control
process...1
Apr 02 19:11:34 localhost.localdomain systemd[1]: Failed to start
FreeRADIUS high ....
Apr 02 19:11:34 localhost.localdomain systemd[1]: Unit radiusd.service
entered fai....
Apr 02 19:11:34 localhost.localdomain systemd[1]: radiusd.service failed.
Hint: Some lines were ellipsized, use -l to show in full.
[root at localhost ~]#