Hello Wallace_Wang,
Thank you for bringing this issue to our attention. We apologize for the inconvenience caused. Our team was aware of the problem and have fixed the problem now.
We take these issues very seriously and are committed to ensuring the accuracy and reliability of our platform. Your feedback helps us identify and fix problems, and we appreciate your patience and understanding as we work to resolve this issue.
If there is anything else we can assist you with, please do not hesitate to reach out. Thank you again for your feedback and for being a valued customer of our course.
Happy Learning