I can not submit my writeup with the error "Docker Digest is required."

As mentioned in the title, I receive the message "Docker Digest is required" when I try to submit my writeup. How can I solve the problem? Thanks!

Created by Jianing Chen RKrnn
@RKrnn No worries! I can confirm we have received your writeup. Thanks for submitting the writeup.
It seems that I have solved this problem. Sorry to interrupt.

Your web browser must have JavaScript enabled in order for this application to display correctly.
If you are an automated web crawler from a search engine, follow this AJAX application crawl link

As mentioned in the title, I receive the message "Docker Digest is required" when I try to submit my writeup. How can I solve the problem? Thanks!

Drop files to upload

I can not submit my writeup with the error "Docker Digest is required." page is loading…