How to send exercise submission successfully !

[Quan-dang0405]

I am new to begin the "Machine Learning" course. I submitted the exercise to grade and Jupyter notebook promt me to input email and token. I input my private email and token displayed on cmd but I get the error "You used an invalid email or your token may have expired. Please make sure you have entered all fields correctly. Try generating a new token if the issue still persists."
Can anyone help me ?

[dibgerge]

Are you still having problems with this? The grading system was updated recently. Try to pull the latest code and re-submit your solutions.

[niha070rika]

I am unable to pull the code as it says i dont have a git file? but I clonesd the file as instructed...