# Help! Error Converting circular structure to JSON

**URL:** <https://community.directus.com/t/help-error-converting-circular-structure-to-json/2150>\
**Category:** Help\
**Tags:** api\
**Created:** [April 14, 2026, 12:37pm UTC](https://community.directus.com/t/help-error-converting-circular-structure-to-json/2150 "2026-04-14T12:37:53Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![David\_O](https://sea2.discourse-cdn.com/flex002/user_avatar/community.directus.com/david_o/32/649_2.png) [@David\_O](https://community.directus.com/u/David_O)\
**Post date:** [April 14, 2026, 12:37pm UTC](https://community.directus.com/t/help-error-converting-circular-structure-to-json/2150/1 "2026-04-14T12:37:53Z")

</div>

Anyone seen this beauty before??

[https://admin.schedlio.com/server/health](https://admin.schedlio.com/server/health)

Gives me:

```json
{

  "errors": [

    {

      "message": "Converting circular structure to JSON\n --\u003E starting at object with constructor 'Object'\n --- property 'issuerCertificate' closes the circle",

      "extensions": {

        "code": "INTERNAL_SERVER_ERROR"

      }

    }

  ]

}

```

Everything else seems to be working fine. Another instance on the same server, both at same directus version, shows an ok status.

---

<div class="post-metadata">

**Author:** ![rijkvanzanten](https://sea2.discourse-cdn.com/flex002/user_avatar/community.directus.com/rijkvanzanten/32/31_2.png) [@rijkvanzanten](https://community.directus.com/u/rijkvanzanten)\
**Post date:** [May 7, 2026, 10:19am UTC](https://community.directus.com/t/help-error-converting-circular-structure-to-json/2150/2 "2026-05-07T10:19:23Z")

</div>

I haven’t seen that before, but it does look like a bug to me. It’s a bit hard to debug with the current amount of info available, but if you could [open a new bug report over on the GitHub repo](https://github.com/directus/directus/issues/new?template=bug_report.yml) our team can take a look and resolve this 🙂