title: Getting "EndpointDisabled" from Amazon SNS
body: <p>I'm using Amazon SNS. Notifications work well, but sometimes I get this error:</p>
  
  <pre><code>{
      "message": "Endpoint is disabled",
      "code": "EndpointDisabled",
      "name": "EndpointDisabled",
      "statusCode": 400,
      "retryable": false
  }
  </code></pre>
  
  <p>Maybe you know why.</p>