C5W4 final assignment opening issue

I can not open the lab for the final assignment. I tried to wait, log out and reopen many times but nothing works.
What should I do next?

Hi Quang,

Is this happening for only this lab?

Did you try with any other browser?

Can you clear your browser’s cache and cookie and try again? Or maybe even restarting your PC and opening the lab again?

Let me know if it’s still not working.

Hello Godawat, thanks for your support.
That happened with some other assignment but that’s OK after I reload serverial times except this one.
I tried everything you said but still not OK

I can’t believe that nobody can help me???

In additional,
Now I can not access or open any lab or assignment of this Specialization

Solved by changing Coursera account password and log in again