Console will give message when incompete message:
Incomplete Default Receiver
Configure this receiver to ensure that you learn about important issues with your cluster.
click configure, will got :
Because this is your first receiver, it will automatically receive all alerts from this cluster. You can route specific alerts to subsequent receivers that you create. You can also edit your default receiver at a later time.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.