When you submit a question to AnswerBank, it tries to look up similar questions that have already been asked. I assume it uses the words you used in the title of the question and the database didn't like it. When a search is made on SQL Server (the database that holds the info), words like or, and, if, I etc are ignored. It looks like the title of your question contained only these sorts of words and AB didn't catch the error (ie, the error was displayed on the page instead of being handled properly).