System Updating-Taking Long- After Backup and Restore

Hi All,
I have done a back up and restore of my server following this procedure"https://github.com/frappe/erpnext/wiki/Restoring-From-ERPNext-Backup". Its now show a messeage “Your system is being updated. Please refresh again after a few moments” for over an hour. I have rebooted the server but nothing happens. Kindly assist
Regards