Hi,
Every Time I wanted to submit my assignments I faced submitting… page and nothing happened. I saved the notebook and then tried again but the problem hadn’t been solved.
Try restarting the kernel. There is a menu option for this.
Also, if you added any code to the notebook that uses print() to display debugging information, try commenting those lines out. print() statements can clog the web interface by trying to output too much data to your browser. This can cause the kernel to stall and time-out. This makes your session stop responding.
It’s something to be careful about.
how can I delete the assignment file to refresh it?
See the FAQ thread.
Also, Submit button doesn’t display
Is your subscription to Course 5 valid?