Stopping odoo-server: start-stop-daemon: warning: failed to kill 5300: Operation not permitted

 I am using Ubuntu 14.04 and encountering this error.

Trying to Odoo v8

Here is the script i am using:-

#!/bin/sh
### BEGIN INIT INFO
# Provides: odoo-server
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Enterprise Business Applications
# Description: ODOO Business Applications
### END INIT INFO
PATH=/bin:/sbin:/usr/bin
DAEMON=/odoo/odoo-server/openerp-server
NAME=odoo-server
DESC=odoo-server

# Specify the user name (Default: odoo).
USER=odoo

# Specify an alternate config file (Default: /etc/openerp-server.conf).
CONFIGFILE="/etc/odoo-server.conf"

# pidfile
PIDFILE=/var/run/${NAME}.pid

# Additional options that are passed to the Daemon.
DAEMON_OPTS="-c $CONFIGFILE"
[ -x $DAEMON ] || exit 0
[ -f $CONFIGFILE ] || exit 0
checkpid() {
[ -f $PIDFILE ] || return 1
pid=`cat $PIDFILE`
[ -d /proc/$pid ] && return 0
return 1
}

case "${1}" in
start)
echo -n "Starting ${DESC}: "
start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER --background --make-pidfile \ --exec $DAEMON -- $DAEMON_OPTS
echo "${NAME}."
;;
stop)
echo -n "Stopping ${DESC}: "
start-stop-daemon --stop --quiet --pidfile $PIDFILE --oknodo
echo "${NAME}."
;;

restart|force-reload)
echo -n "Restarting ${DESC}: "
start-stop-daemon --stop --quiet --pidfile $PIDFILE --oknodo
sleep 1
start-stop-daemon --start --quiet --pidfile $PIDFILE --chuid $USER --background --make-pidfile \ --exec $DAEMON -- $DAEMON_OPTS
echo "${NAME}."
;;
*)
N=/etc/init.d/$NAME
echo "Usage: $NAME {start|stop|restart|force-reload}" >&2
exit 1
;;

esac
exit 0