C1_w3_ lab assignment The loop exercise

Hello @Dima_AlHarbi! Thank you for sending me your notebook.

First, you posted this query on the Deep Learning Specialization Course 1 (Neural Networks and Deep Learning) category but your notebook is for Course 1 of Math for Machine Learning. Please move your query to the related course category as described here.

Second, I ran your notebook on my PC and found no errors. Even you have done all the exercises correctly and passed all the tests. So, please do Kernel → Restart & Run All.