I will try right now, but you should absolutely contact the game jam team again, as the rules clearly state that you need to include all necessary files on the site! Letting you know just to help you as soon as possible.
You can not require the user to download additional software from external sources (so no ROMs for emulators, or games for Roblox. If your game requires additional files (like DLLs) they should be included in the download and not require separate installation).