C4W1 submission error

CNN week1 assignment2
My code for happyModel and convolutional model have passed the test. However, after submitting, the grading system keeps telling me “my submission is incorrect, please try again”.

i wonder if there’s something i can do to fix this

Passing the unit tests does not guarantee that your code is perfect. It doesn’t check for every possible error in your code.

Thanks for replying !
But it seems like those two cells are the only places for me to implement my code.
I know I’m not supposed to post my code here, so how can I be sure where the problem is?

{My reply has been edited}

Note: This issue seems to only apply to the “Chinese Edition” of the course, which has its own separate support forum.