原先下sudo systemctl restart freeradius 但似乎不能restart
出現這些訊息

Job for freeradius.service failed because the control process exited with error code.
See "systemctl status freeradius.service" and "journalctl -xeu freeradius.service" for details.

後來指令下sudo systemctl status freeradius
發現狀態不是running 是auto-restart
● freeradius.service - FreeRADIUS multi-protocol policy server
Loaded: loaded (/lib/systemd/system/freeradius.service; enabled; vendor preset: enabled)
Active: **activating (auto-restart) (Result: exit-code) **since Wed 2022-06-15 17:14:08 CST; 4s ago
Docs: man:radiusd(8)
man:radiusd.conf(5)
http://wiki.freeradius.org/
http://networkradius.com/doc/
Process: 20560 ExecStartPre=/usr/sbin/freeradius $FREERADIUS_OPTIONS -Cx -lstdout (code=exited, status=1/FAILURE)
CPU: 317ms

qo-VirtualBox systemd[1]: freeradius.service: Control process exited, code=exited, status=1/FAILU>
qo-VirtualBox systemd[1]: freeradius.service: Failed with result 'exit-code'.
qo-VirtualBox systemd[1]: Failed to start FreeRADIUS multi-protocol policy server.

不知道各位大大 能看的出來是哪邊出問題嗎?
環境是ubuntu