Scoring 0 | error in grading

Hi, I’ve completed my week 3 notebook assignment, however, when i submit the assignment, for some reason it scores me as ‘0’. Which isn’t the case as I can see my outputs match with the asserts / checks.

I haven’t added / deleted any cells either so I’m not sure what to do at this stage. Can someone help pls ? cheers

Passing the tests in the notebook does not prove your code is perfect. The grader uses different tests.

Please post a screen capture image that shows your feedback from the grader.

Hi there,
Here’s a screenshot from the grader:

Be sure your notebook passes all of the built-in test cases before you submit it for grading. Any asserts when you run the notebook will make the grader crash and give this grader error.