My Grades Kept Coming Back As Zeros

Dear Community,
I have been inhibited from finishing some of my courses e.g. Probability and Hyperparameter tuning because the grader returns my overall score as zero even when I have got all tests passed for the majority of the assignments. That has frustrated me beyond measure. I need help with how I can fix the issue.

Thank you so much for your help.

Which course you are doing? I don’t see Probability and Hyperparameter tuning
in Deep Learning Specialization → Convolutional Neural Networks. Also, please share a screenshot of the error.