Grading error message

[SRioufol]

Hello,

I just reviewed my grades after completing module 2 and noticed this error (missing grade for the first exercise of module 1)
Has anyone encountered a similar error in the past? If so, what should I do? Go back to module 1, clear the kernel and rerun all cells?

Thanks!

[TMosh]

Usually this means you’ve deleted something from the notebook, which the Grader uses for processing your work.