Over the various versions of IPB forums and applications, one of the most significant challenges for self-hosted admins has been the lack of clarity in error messages. In the past, having error codes listed was incredibly helpful. They allowed me to identify issues quickly and resolve them without needing to open a support ticket. This saved considerable time—what might have taken an hour to fix on my own could otherwise take days of back-and-forth with support to resolve.

The current example of error handling isn’t very helpful for self-hosted admins. Previously, the error code lists provided a way to look up and address issues independently, which was invaluable. I’d like to request that this feature be restored to assist self-hosted admins in troubleshooting errors more efficiently.

Im not sure what else you would want from that, to be honest. Its a 404, page not found

We would go more down the road of making it more obvious what the issue is and better logging, than providing lists. You would be able to see things like this in system and error logs, which would give more detail where needed. But in the case of this one, the page simply doesnt exist