---
description: Troubleshoot HTTP 500 error responses.
title: Error 500
image: https://developers.cloudflare.com/og-docs.png
---

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# Error 500

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/error-500/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

## Error 500: internal server error

This error indicates a problem with your origin web server, preventing it from fulfilling the request.

### Common causes

The `Error establishing database connection message` is a common HTTP `500` error, typically indicating an origin web server issue. If you encounter this error, contact your hosting provider for assistance.

### Resolution

When dealing with most `5XX` errors, the first step is to reach out to your hosting provider or site administrator to help troubleshoot the issue. Share the necessary [error details](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-5xx-errors/#required-error-details-for-hosting-provider) to your hosting provider to assist troubleshooting the issue.

However, if the `500` error contains `cloudflare` or `cloudflare-nginx` in the HTML response body, contact [Cloudflare support](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/support/contacting-cloudflare-support/) and provide the following details:

* Your domain name
* The time and timezone of the `500` error occurrence
* The output of `www.example.com/cdn-cgi/trace` from the browser where the `500` error was observed (replace `www.example.com` with your actual domain and hostname)

Note

If you observe blank or white pages when visiting your website, confirm whether the issue occurs when [temporarily pausing Cloudflare](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/fundamentals/manage-domains/pause-cloudflare/) and contact your hosting provider for assistance.

### Workers-specific causes

Error 500 can also occur when using Cloudflare Workers:

* A Cloudflare Worker throws a runtime JavaScript exception (see [Error 1101](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/support/troubleshooting/http-status-codes/cloudflare-1xxx-errors/error-1101/))

If you are using Workers, check the Workers dashboard for error logs and exceptions.

### Troubleshooting steps

1. **Check recent configuration changes**: Review any recent changes to Page Rules, Transform Rules, or Workers that might affect request processing.
2. **Verify origin connectivity**: Ensure your origin server is responding correctly and within acceptable timeframes.
3. **Review Workers logs**: If using Workers, check for JavaScript exceptions or CPU time limit errors in the Workers dashboard.
4. **Test with Cloudflare paused**: Temporarily pause Cloudflare to determine if the issue is origin-related.

### Known Cloudflare issue leading to HTTP Error 500

* A configuration issue on Page Rules can generate HTTP Error `500`. Refer to [Page Rules troubleshooting](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/rules/page-rules/troubleshooting/general/#error-500-internal-server-error) for more details and resolution.

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