Crypto_setup: host key file not found or corrupt

#1

Hello!
I am trying to configure NTP on Centos 7 last version and I get this error:

srvspntp01 ntpd[29181]: crypto_setup: host key file ntpkey_host_srvspntp01.localdomain not found or corrupt

/etc/ntp

-rw-r–r--. 1 root root 74 Apr 10 2018 step-tickers
-rw------- 1 root root 95 Apr 17 11:49 keys
drwxr-xr-x 2 ntp ntp 102 Apr 18 08:43 ntp.keys
drwxr-x—. 2 root ntp 30 Apr 18 09:09 crypto

#####ntp.conf#####

driftfile /var/lib/ntp/drift
restrict 127.0.0.1
restrict -6 ::1
server ntp.br
keys /etc/ntp/keys
trustedkey 1
controlkey 1
requestkey 1

restrict 127.0.0.1
restrict::1
restrict -4 default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery

####Servidor ntp.br########

server a.st1.ntp.br 200.160.7.186 e 2001:12ff:0:7::186 iburst prefer
server b.st1.ntp.br 201.49.148.135 iburst
server c.st1.ntp.br 200.186.125.195 iburst
server d.st1.ntp.br 200.20.186.76 iburst
server a.ntp.br 200.160.0.8 e 2001:12ff::8 iburst
server b.ntp.br 200.189.40.8 iburst
server c.ntp.br 200.192.232.8 iburst
server gps.ntp.br 200.160.7.193 e 2001:12ff:0:7::193 iburst

logfile /var/log/ntpd.log

Enable public key cryptography.

crypto
keysdir /etc/ntp/ntp.keys
crypto randfile /dev/urandom

includefile /etc/ntp/crypto/pw

disable monitor