I was able to see that the files were uploaded but now I don't see the uploaded files anymore
Make sure you’ve chosen the correct game type / page type for your game. Since you’ve got a downloadable Windows game, the drop down menu should be on executable and not the Unity game web game preset. If you choose the default first choice (Playable Unity browser game) but upload an executable file (downloadable game) your game page won’t display correctly.
Hmm. Try opening your itch dashboard and double checking the settings It sounds like a page setting is incorrect.
You can always just upload to another site (google drive, media fire, etc.) and share a link to it on your game page or on your jam page. That way at least people can play and rate it during the rating period.