Ludum Dare is a worldwide game jam where games are made from scratch in a weekend. This weekend ( April 17th-20th 2020 ) is Ludum Dare 46, and we're excited to...
Not sure if it's universal but my desktop version is still working if you're using the browser which has also ended for me.
You can save the project file from your browser open it in the desktop version and export it from there. Not ideal/possibly won't work for you but thought it worth mentioning when I saw this in-case.
I'd hope they would allow the final hour of submission time for it to still be available.