TypeError is not handled properly

[vhadianto]

This type error is not caught and the control ends up in DLQ.

https://turbothq.slack.com/archives/CT38B9F8A/p1607450246098800

    "error": {
        "message": "Cannot read property 'Attachment' of undefined",
        "code": "TypeError",
        "time": {},
        "name": "TypeError",
        "stack": "TypeError: Cannot read property 'Attachment' of undefined\n    at eval (webpack:///./index.js?:228:58)\n    at eval (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/async/dist/async.js?:472:16)\n    at processQueue (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/async/dist/async.js?:1577:20)\n    at taskComplete (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/async/dist/async.js?:1600:9)\n    at eval (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/async/dist/async.js?:1624:17)\n    at eval (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/async/dist/async.js?:968:16)\n    at Response.eval (webpack:///./index.js?:181:13)\n    at Request.eval (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/aws-sdk/lib/request.js?:369:18)\n    at Request.callListeners (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/aws-sdk/lib/sequential_executor.js?:106:20)\n    at Request.emit (webpack:////home/runner/work/turbot-mods/turbot-mods/node_modules/aws-sdk/lib/sequential_executor.js?:78:10)"
    },
    "message": "Lambda process received Uncaught Exception",
    "level": "error",
    "timestamp": "2020-12-08T17:35:15.268Z"
}```