Status Starting lagging

My code in starting status for more than hour what is the problem?

Hi @ahmad2,

It looks like something went wrong with your upload, and the job got stuck. We don’t seem to have actually gotten your submission ZIP. I’ve forcibly canceled the job, which allows you to make a new submission. Any submission that you make before the submission deadline will still be run and will count, even if it runs after the submission deadline due to the queue.