ValidationError Stack:arn aws cloudformation stack is in ROLLBACK_COMPLETE state and can not be updated : <p>When I deploy using cloudformation <code>aws cloudformation deploy --region $region --stack-name ABC</code></p>

<p>Got error: </p>

<blockquote>
  <p>An error occurred (ValidationError) when calling the CreateChangeSet
  operation:
  Stack:arn:aws:cloudformation:stack/service/7e1d8c70-d60f-11e9-9728-0a4501e4ce4c
  is in ROLLBACK_COMPLETE state and can not be updated.</p>
</blockquote>

<p>Please help me !</p>
