C5w2 A2 Cell #9. Can't compile the student's code. Error: TypeError('range expected 1 arguments, got 0',)

The title of this thread is the error message that I get when I submit my notebook for grading.

All tests are passed within the notebook, but when I submit my assignment, I got 0 as grade and the error message above.

Can you please help me solve this issue?

Thanks

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