Hello!
It looks like you did submit to the quest jam just fine. You're asking in the wrong jam thread- this is the community tab for the "RPG Developer Bakin 2026" jam (which I am also hosting), and if you're looking for submissions here, you won't find one since you submitted to the HeroQuest 2026 jam.
I will let you know that you submitted an hqb file -- that jam requires its entries to be pdf files, so please submit the pdf asap (you can resubmit anytime during the submission period, but not after).