The "xx days" are decreasing every day how to fix this issue?
This is MC 3.1.x base OS bug
Running "licensing load" or "show licenses" would trigger this bug
Management Center Virtual-Appliance running 3.1.x
Recently upgrade MC-VA to 3.1.x
Workaround is to restart the Management Center.
You can restart by running "restart" in MC's CLI, privilege mode
Once rebooted, it may take couple of hours for the message to disappear.
Note: Running "licensing load" or "show licenses" CLI command would trigger the issue again on which another restart is needed