Course 2 Week 1 Lab Error

I finished the practice lab for handwritten digit classification (the final lab of the week) and passed all the internal tests in the assignment, but when I submit it I get a 0% and a “Sorry, your submission was incorrect. Please try again. Expecting value: line 1 column 1 (char 0)” message. Not sure what this means and what I’m missing?

Hi!

Can you send me your code in a direct message so I can help?