MailScanner 5.1.2 not working

[Koby Peleg Hen]

● mailscanner.service - LSB: MSMilter daemon
    Loaded: loaded (/usr/lib/MailScanner/init/msmilter-init; enabled; 
vendor preset: enabled)
    Active: active (running) since Thu 2018-10-25 14:44:44 IDT; 19s ago
      Docs: man:systemd-sysv-generator(8)
   Process: 2366 ExecStop=/usr/lib/MailScanner/init/msmilter-init stop 
(code=exited, status=0/SUCCESS)
   Process: 2383 ExecStart=/usr/lib/MailScanner/init/msmilter-init start 
(code=exited, status=0/SUCCESS)
  Main PID: 2492 (MSMilter Daemon)
     Tasks: 6 (limit: 2319)
    CGroup: /system.slice/mailscanner.service
            ├─2492 MSMilter Daemon
            ├─2496 MSMilter Daemon
            ├─2497 MSMilter Daemon
            ├─2498 MSMilter Daemon
            ├─2499 MSMilter Daemon
            └─2500 MSMilter Daemon

Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Reading configuration 
file /etc/MailScanner/conf.d/SmgMailScanner.conf
Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Configuration: Seen 
configuration file /etc/MailScanner/conf.d/README before, skipping.
Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Configuration: Seen 
configuration file /etc/MailScanner/conf.d/SmgMailScanner.conf before, 
skipping.
Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Could not read 
directory /var/spool/MailScanner/incoming/Locks
Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Error in configuration 
file line 3103, directory /var/spool/MailScanner/incoming/Locks for 
lockfiledir does not exist (or is not readable)
Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Read 1500 hostnames 
from the phishing whitelist
Oct 25 14:44:43 lab.mksoft.co.il MSMilter[2396]: Read 16624 hostnames 
from the phishing blacklists
Oct 25 14:44:43 lab.mksoft.co.il root[2494]: MSMilter started
Oct 25 14:44:44 lab.mksoft.co.il msmilter-init[2383]: MSMilter started 
with process id 2492
Oct 25 14:44:44 lab.mksoft.co.il systemd[1]: Started LSB: MSMilter daemon.