Getting no grades for correct answers - C4W2

hi
I have uploaded all correct answers for C4W2 assignment, but getting 0 grades for :
review_sample_df()
metadata_sample_df()
process_review()
process_metadata()
I am getting full grades for other functions
Please let me know if this is related to graded cell issue within vs code notebook ?

Hi @Meenal_B did you change or delete any cell before grading the assignment?

What is the detailed feedback from the grader?
Please post screen capture images.

yes, I might have deleted the cells
what to do now ?

If you deleted some cells you can start over a fresh copy.

  1. Delete the file you modified (save any code you want to re-use)
  2. Go to the top right corner as I show you in the screenshot
  3. Click on Get the latest version and you will get a new copy to start over

@Meenal_B let me know if this helps