restart command not works sometime

[mylselgan]

issue while restarting here is the output when i restart a radio

radio@scw:~/liquidsoap-daemon/script$ sudo /etc/init.d/ragam-liquidsoap-daemon restart
Stopping liquidsoap... OK
PID file still present! And daemon is running..
radio@scw:~/liquidsoap-daemon/script$ sudo /etc/init.d/ragam-liquidsoap-daemon restart
No liquidsoap daemon running..
Starting liquidsoap... OK
radio@scw:~/liquidsoap-daemon/script$ sudo /etc/init.d/ragam-liquidsoap-daemon restart
Stopping liquidsoap... OK
Starting liquidsoap... OK
radio@scw:~/liquidsoap-daemon/script$ liquidsoap --version
Liquidsoap 1.3.3
Copyright (c) 2003-2017 Savonet team
radio@scw:~/liquidsoap-daemon/script$ hostnamectl
   Static hostname: scw
   Icon name: computer-vm
   Chassis: vm
   Virtualization: kvm
   Operating System: Debian GNU/Linux 9 (stretch)
   Kernel: Linux 4.9.0-6-amd64
   Architecture: x86-64