When you try to ask a question, it tells you to go to a link. http://goo.gl/C1Kwu <-- the link, just in case you can't find it.
Read what it says on the link. But I'll explain anyway: the website automatically IP bans people with a bad question rating history, and you won't be able to ask questions (ever) unless you spend some time giving good answers and improving your account.
Edit: After you posted a comment on my answer telling me what the error message was: "Oops! Your question couldn't be submitted because: •Sorry, you are only allowed to ask 50 questions in a 30 day period"
Well after doing some research, I have come to the conclusion problem is that you've asked more than 50 questions in a 30 day period.