There are automated filters in place that prevent questions from being asked which are likely to be closed. In your case, your question was very likely to be closed as general reference or off-topic, and the SE framework discovered this and prevented you from asking the question.
There is more information here: https://meta.stackexchange.com/questions/91072/why-cant-a-question-on-the-stack-exchange-sites-be-submitted.What can I do when getting “This question body does not meet our quality standards”?