1179 Error Mailgun Automate Triggered

{
  "name": "1179 Error Mailgun Automate Triggered",
  "nodes": [
    {
      "name": "Error Trigger",
      "type": "n8n-nodes-base.errorTrigger",
      "position": [
        250,
        500
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "name": "Mailgun",
      "type": "n8n-nodes-base.mailgun",
      "position": [
        450,
        500
      ],
      "parameters": {
        "text": "=Error: {{$node[\"Error Trigger\"].data[\"execution\"][\"error\"][\"message\"]}}\n\nStack Trace:\n{{$node[\"Error Trigger\"].data[\"execution\"][\"error\"][\"stack\"]}}",
        "subject": "=Workflow Error:  {{$node[\"Error Trigger\"].data[\"workflow\"][\"name\"]}}",
        "toEmail": "",
        "fromEmail": ""
      },
      "credentials": {
        "mailgunApi": ""
      },
      "typeVersion": 1
    }
  ],
  "connections": {
    "Error Trigger": {
      "main": [
        [
          {
            "node": "Mailgun",
            "type": "main",
            "index": 0
  ...