'Delivery Note' Error

On demo.erpnext.com
When I save Delivery Note ,got following Error.Not able to save Delivery Note form.

Traceback (most recent call last):
  File "/home/frappe/frappe-bench/apps/frappe/frappe/app.py", line 55, in application
    response = frappe.handler.handle()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 19, in handle
    execute_cmd(cmd)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/handler.py", line 36, in execute_cmd
    ret = frappe.call(method, **frappe.form_dict)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 887, in call
    return fn(*args, **newargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/desk/notifications.py", line 208, in get_open_count
    filters={fieldname: name}, limit=10, distinct=True, ignore_ifnull=True))
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 1093, in get_all
    return get_list(doctype, *args, **kwargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/__init__.py", line 1066, in get_list
    return frappe.model.db_query.DatabaseQuery(doctype).execute(None, *args, **kwargs)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/db_query.py", line 80, in execute
    result = self.build_and_run()
  File "/home/frappe/frappe-bench/apps/frappe/frappe/model/db_query.py", line 104, in build_and_run
    return frappe.db.sql(query, as_dict=not self.as_list, debug=self.debug, update=self.update)
  File "/home/frappe/frappe-bench/apps/frappe/frappe/database.py", line 148, in sql
    self._cursor.execute(query)
  File "/home/frappe/frappe-bench/env/lib/python2.7/site-packages/MySQLdb/cursors.py", line 205, in execute
    self.errorhandler(self, exc, value)
  File "/home/frappe/frappe-bench/env/lib/python2.7/site-packages/MySQLdb/connections.py", line 36, in defaulterrorhandler
    raise errorclass, errorvalue
OperationalError: (1054, "Unknown column 'tabQuality Inspection.delivery_note_no' in 'where clause'")

Thanks for reporting, pushed a fix.