Update 4xx-client-error.mdx

Fixing broken link

Author: malmeidacsup

src/content/docs/support/troubleshooting/http-status-codes/4xx-client-error.mdx

@@ -92,7 +92,7 @@ The request did not complete because of a conflict with the current state of the
 * The server *should* generate a payload that includes enough information for the client to recognize the source of the conflict.
 * Clients can and should retry the request again
 
-Cloudflare will generate and serve a 409 response for a [Error 1001: DNS Resolution Error](https://support.cloudflare.com/hc/articles/360029779472#error1001).
+Cloudflare will generate and serve a 409 response for a [Error 1001: DNS Resolution Error](https://developers.cloudflare.com/support/troubleshooting/cloudflare-errors/troubleshooting-cloudflare-1xxx-errors/#error-1001-dns-resolution-error).
 
 ## **410 Gone ([RFC7231](https://tools.ietf.org/html/rfc7231))**