On your homepage on this site, you may see a message such as "you have quizzes that are due" if there are quizzes in the course you are taking. This message will appear if there's any quiz that has a deadline sometime before the end of the course. It could well be that the quiz is not yet available for you to attempt, but the message will still appear on your homepage. In this case you can ignore the message. Just focus on completing the lessons and activities for the current week or unit of the course you are taking.