"I have a question about the edX Course Creator Series becoming a Professional Certificate."
If so, visit the course-wide discussion area and post your question. A member of the course team will respond as soon as possible: https://courses.edx.org/courses/course-v1:edX+edX101+1T2018/discussion/forum/i4x-edX-edX101_1-course-2000/threads/5b992457c305ad09ec002aac
"Why can't I do the graded problems in this course?" OR "Why is there a limit on how long I can access this course?"
edX.org recently changed its policy regarding the audit track learner's experience. In order to complete the assignments in this course you will need to upgrade to the verified track. Please direct questions you may have to the discussion above.