Grader Error: Programming Assignment: Retail sales - Expanding your analysis — Module 2 Exercise 6

I am getting the following error (screenshot attached). for exercise 6. However, I’m not sure what I’m doing incorrectly as my output is a series, not a dataframe

This sometimes happens if you are not using the method that the grader expects!

Hi. To troubleshoot, you can add a new cell at the end of the notebook then see the output of type(unit_counts). It’s possible that you reassigned it after exercise 6 and it’s detecting that. Hope this helps.

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