I've just installed Debian alongside Ubuntu and windows 7 in other partition. since I have a problem with my Debian OS (about booting it) but I don't see an Ask Debian site and since I trust the answers from Ask Ubuntu, and Ubuntu is a derivative of Debian, I thought it might be reasonable to ask questions about Debian here.

I tried to find my answer on various forums and also on Debian support, but I didn't find it. If I can't ask questions about Debian on Ask Ubuntu then where can I ask them?

I also asked the question on Quora but not a single answer has solved my problem.