***Before deleting the Cloudformation Stack, make sure that you have successfully completed the ‘Destroy’ option in the SelfService tool because this will remove any logs of your deployment and you will be unable to destroy in the future. 

In order to successfully delete the cloud formation stack, you must first make sure your bucket is empty. To do this, navigate to https://s3.console.aws.amazon.com/s3/home in your account and find the bucket named something like “aviatrix-s3-{region}-selfservice-{accountId}”. Click on the radio button to the left of the bucket name, then find “Empty” in the top right of the list. Follow the steps to empty our bucket and then retry ‘Delete’ on the Cloudformation stack.