The error I receive is:
janderson@jUbuntu:~$ systemctl status snapd.service
● snapd.service - Snappy daemon
Loaded: loaded (/lib/systemd/system/snapd.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2018-06-25 08:14:12 EDT; 4min 12s ago
Process: 1107 ExecStart=/usr/lib/snapd/snapd (code=exited, status=1/FAILURE)
Main PID: 1107 (code=exited, status=1/FAILURE)
Jun 25 08:14:12 jUbuntu systemd[1]: snapd.service: Service hold-off time over, scheduling restart.
Jun 25 08:14:12 jUbuntu systemd[1]: snapd.service: Scheduled restart job, restart counter is at 5.
Jun 25 08:14:12 jUbuntu systemd[1]: Stopped Snappy daemon.
Jun 25 08:14:12 jUbuntu systemd[1]: snapd.service: Start request repeated too quickly.
Jun 25 08:14:12 jUbuntu systemd[1]: snapd.service: Failed with result 'exit-code'.
Jun 25 08:14:12 jUbuntu systemd[1]: Failed to start Snappy daemon.
Also
janderson@jUbuntu:~$ snap version
snap 2.32.9+18.04
snapd unavailable
series -