Samba error message

[R Kimber]

When doing:
sudo apt-get autoremove, I get the following:
 
"Setting up samba (2:4.5.8+dfsg-0ubuntu0.17.04.3) ...
Failed to preset unit: Unit file /etc/systemd/system/samba-ad-dc.service is
masked. /usr/bin/deb-systemd-helper: error: systemctl preset failed on
samba-ad-dc.service: No such file or directory"

followed after a while by:

"Job for nmbd.service failed because a timeout was exceeded.
See "systemctl status nmbd.service" and "journalctl -xe" for details.
invoke-rc.d: initscript nmbd, action "start" failed.
● nmbd.service - Samba NMB Daemon
   Loaded: loaded (/lib/systemd/system/nmbd.service; enabled; vendor
preset: enabled)
   Active: failed (Result: timeout) since Thu 2017-07-06 12:35:46 BST; 3ms
ago
     Docs: man:nmbd(8)
           man:samba(7)
           man:smb.conf(5)
 Main PID: 15578
   Status: "nmbd: No local IPv4 non-loopback interfaces available, waiting
for interface ..."
    Tasks: 1 (limit: 4915)
   CGroup: /system.slice/nmbd.service

Jul 06 12:34:16 infinity nmbd[15577]: [2017/07/06 12:34:16.608005,
0] ../lib/para…ter)
Jul 06 12:34:16 infinity nmbd[15577]:   Ignoring unknown parameter
"password level"
Jul 06 12:34:16 infinity systemd[1]: nmbd.service: Supervising process
15578 which…its.
Jul 06 12:34:16 infinity nmbd[15578]: [2017/07/06 12:34:16.608936,
0] ../lib/util…tus)
Jul 06 12:34:16 infinity nmbd[15578]:   STATUS=daemon 'nmbd' : No local
IPv4 non-l…v6).
Jul 06 12:35:46 infinity systemd[1]: nmbd.service: Start operation timed
out. Term…ing.
Jul 06 12:35:46 infinity systemd[1]: nmbd.service: Killing process 15578
(nmbd) wi…ILL.
Jul 06 12:35:46 infinity systemd[1]: Failed to start Samba NMB Daemon.
Jul 06 12:35:46 infinity systemd[1]: nmbd.service: Unit entered failed
state.
Jul 06 12:35:46 infinity systemd[1]: nmbd.service: Failed with result
'timeout'.
Hint: Some lines were ellipsized, use -l to show in full.
dpkg: error processing package samba (--configure):
 subprocess installed post-installation script returned error exit status 1
Processing triggers for libc-bin (2.24-9ubuntu2.2) ...
Errors were encountered while processing:
 samba
E: Sub-process /usr/bin/dpkg returned an error code (1)"

journalct gives
https://www.dropbox.com/s/imipu76drodbsli/journalctl.txt?dl=0

systemctl gives
https://www.dropbox.com/s/luu6j81u368nn9e/systemctl.txt?dl=0

This is all beyond my competence.
Any suggestions as to what might be wrong?
Thanks.
-- 
Richard Kimber