Hello @lixianw
Welcome to the Canvas Community. Thank you for posting your question. Based on your e-mail address assigned to your account here in the Community, it looks like you are a student. Reading through your question, it sounds like you have a few courses that are "published", but one of your courses is not "published". Your instructor for this course is responsible for publishing the course to make it available to you an your classmates. If you know that the course has already officially started, you may want to reach out to your school's local Canvas administrator or your school's Online Learning/eLearning department right away to let them know you cannot access this course. Your instructor may not have realized that the course needs to be published.
I hope this information will be helpful to you, Lixian. Please let Community members know if you have any other questions about this...thanks!
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