[FIXED] Unfortunately, I can't launch the game. The file is uploaded as "downloadable", and after downloading, it's just an HTML file on your computer. To run the game directly in the browser on itch.io, you need to check "Play in browser" in the file settings (Edit project). Without this, there's no "Run game" button on the page.
Alternatively, if you just want it to be downloaded, you need to specify a Windows profile when exporting.