Assertion Error week 2

I have been getting this assertion error in week 2 assignment. Please help me resolve this properly. Many mentors have given hints for solution but its not helping me anyways. The course taught in class is not upto the mark of the questions in assignment.

Hi, Talha Khan.

Please share the traceback of the error you are getting.

Hi, Talha Khan.

You cannot share your notebook publicly. It’s against the rules. Please remove the copy and DM me.

ok. Sending you in DM.