You are in emergency mode

After I upgraded parrot to latest version and rebooted the following text is showing in the screen :
[ 4.2676711 sd 2:0:0:0: [sdb] No Caching node page found [ 4.2676991 sd 2:0:0:0: [sdb] Assuming drive cache: urite through

You are in emergency mode. After logging in, type “journalctl -xb” to view system logs, “systemctl reboot” to reboot, “systenctl default” or “exit” to boot into default mode.

Give root password for maintenance (or press Control-D to continue):
Tried several methods to exit emergency mode but unfortunately no results plz guide me I shall be thankful to you. I am stuck for 3 hours.