This current close reason is confusing and potentially misleading.
Questions must demonstrate a minimal understanding of the problem being solved. Try including attempted solutions, why they didn't work, and the expected results. See How can I ask better questions on Server Fault? for further guidance.
It was originally ripped off entirely from Stack Overflow, which has since replaced it with a much clearer reason:
Questions seeking debugging help ("why isn't this code working?") must include the desired behavior, a specific problem or error and the shortest code necessary to reproduce it in the question itself. Questions without a clear problem statement are not useful to other readers. See: How to create a Minimal, Complete, and Verifiable example.
We get a lot of questions from people who are trying to set up something they don't quite understand, or worse, fix something that's broken that they don't quite understand. Whatever their level of understanding or lack thereof, better guidance for people in such situations would be helpful.