424 Failed Dependency

The last thing you asked for failed, so this did too.

What it properly means

The request failed because a previous request it depended on failed.

Class
4xx Client error: you fucked up
Defined in
RFC 4918
Notes
webdav

Get one yourself

This endpoint really answers with 424. Point your client at it and see what it does.

curl -i https://httpcodes.dev/api/424