The assignment grade keep giving 0 score

I have finished the assignment in week 3:

However, when I requested to get the grade, it kept giving me a 0 score. (I did use the hint in the assignment, but it all passed)

Did anyone see the same issue here??? Please help!

There is an error in your code in the cell marked “UNQ_C3”.
It has something to do with the optimizer setting.

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is it an error from myself or the jupiter notebook?

It is most likely an error from yourself.

Are you able to pass the assignment submit now?

Never mind, I just passed it. I don’t know what happened

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