Failed to mount unit for core, revision 11993

At startup I am getting a message, Failed to mount unit for core, revision 11993

systemctl --failed

UNIT LOAD ACTIVE SUB DESCRIPTION

var-lib-snapd-snap-core-11993.mount loaded failed failed Mount unit for core, revision 11993

What system is this? Is there more in the jorunal? Can you attach the output of journalctl -b --no-pager ?