Error: Notification New Mail not found - On Create Notification

When i go to create notification i recieve this error:

Notification New Mail not found

Error

Traceback (most recent call last):
  File "apps/frappe/frappe/email/doctype/notification/notification.py", line 427, in evaluate_alert
    alert = frappe.get_doc("Notification", alert)
  File "apps/frappe/frappe/__init__.py", line 1176, in get_doc
    doc = frappe.model.document.get_doc(*args, **kwargs)
  File "apps/frappe/frappe/model/document.py", line 74, in get_doc
    return controller(*args, **kwargs)
  File "apps/frappe/frappe/model/document.py", line 106, in __init__
    self.load_from_db()
  File "apps/frappe/frappe/model/document.py", line 149, in load_from_db
    frappe.throw(
  File "apps/frappe/frappe/__init__.py", line 522, in throw
    msgprint(
  File "apps/frappe/frappe/__init__.py", line 490, in msgprint
    _raise_exception()
  File "apps/frappe/frappe/__init__.py", line 442, in _raise_exception
    raise raise_exception(msg)
frappe.exceptions.DoesNotExistError: Notification New Mail not found

I reset the docker droplet and this working fine now!