It is normal for a student ID card to expire. When I opened the student member on Cool Dog software, I found that there was no January package in 5 yuan, which was caused by the expired student ID card. January membership in 5 yuan is the welfare of cool dog music for college students. As long as you use your ID card for authentication, 5 yuan can apply for membership in one month, but if you have graduated, you can't continue to use it, and your student ID card will expire. This is normal.