About the lstm jazz improvisation

I’ve finished the assignment 3 days ago and up till now the notebook is not working and I cannot submit the assignment as when i try to upload it it gives me ‘Submitting…’ and never submits the notebook. I tried everything from restarting the kernel, reverting to checkpoint, even reset my code entirely but nothing is working. Is there another way to upload the assignment ?

There is no other method to submit the assignment.
Perhaps your code contains an infinite loop.