I did that. The folder only has an empty itch file and that's it.
Usually there would be something else but that's all there is. There's no play now option after download is complete either on itch (bottom left of screen usually)
Yep, that's right! The itch.io file is un-clickable because there is no file, just a link :)
I screenshot-ed how to access the game. Hope that helps!
If all else fails, here's the link directly to my game ^^
https://dashingdon.com/play/lavworthmyway/just-the-messenger/mygame/
Happy playing!