Thanks for your comment. I have tried to clear my cache for many times. Didn't work though. Maybe I can try chrome anyway. 

Is there anyone can help? Thanks a lot! 

UPDATE: Even if I access the course page in the course button. The homepage is blank. As I see from my mobile app, there should be content. 

Thank you for your kind reply. I am using Edge browser. I checked its version and turns out to be up-to-date (See the attached screenshot). 

Thank you for your suggestion. I tried log in via Google Chrome and everything worked fine. So, it might not be the network issue. But I do want to stick to Edge browser because many of my info was st...

Thanks for your comment. I have tried to clear my cache for many times. Didn't work though. Maybe I can try chrome anyway. 

Is there anyone can help? Thanks a lot! 

UPDATE: Even if I access the course page in the course button. The homepage is blank. As I see from my mobile app, there should be content. 

Thank you for your kind reply. I am using Edge browser. I checked its version and turns out to be up-to-date (See the attached screenshot). 

Thank you for your suggestion. I tried log in via Google Chrome and everything worked fine. So, it might not be the network issue. But I do want to stick to Edge browser because many of my info was st...