Centos 7 L2TP problem

Dear all

                   I,m getting below error when running "IPsec setup start" , and bottom is the ipsec.conf , any help would be appreciated !


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[root@LinuxHomeServer ipsec.d]# ipsec setup start
cannot load config '/etc/ipsec.conf': /etc/ipsec.conf:48: syntax error, unexpected KEYWORD, expecting $end [virtual_private]
cannot load config '/etc/ipsec.conf': /etc/ipsec.conf:48: syntax error, unexpected KEYWORD, expecting $end [virtual_private]
cannot load config '/etc/ipsec.conf': /etc/ipsec.conf:48: syntax error, unexpected KEYWORD, expecting $end [virtual_private]
unknown stack
Redirecting to: systemctl start ipsec.service
Job for ipsec.service failed because the control process exited with error code. See "systemctl status ipsec.service" and "journalctl -xe" for details.
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vim /etc/ipsec.conf

virtual_private=%v4:192.168.0.0/16

conn=L2TP-PSK-NAT
rightsubnet=vhost:%priv
also=L2TP-PSK-noNAT
conn L2TP-PSK-noNAT
authby=secret
pfs=no
auto=add
keyingtries=3
dpddelay=30
dpdtimeout=120
dpdaction=clear
rekey=no
ikelifetime=8h
keylife=1h
type=transport
left=XX.XX.XX.XX
leftprotoport=17/1701
right=%any
rightprotoport=17/%any