uhhh sorry about that! can't you download a whole new package from the itch.io page? it might not work well with the itch.io app!
No, i tried to reinstall it after uninstall it, and i only have the windows build, or the linux demo, via itch.io app. Although i can download the whole linux package through my bundle purchase via web browser or the game page directly, in an tar.gz archive (i tried it today). My app is up to date, i really don't undestand what's happening. I send you some screenshots to show you the issue :
this is what i get with the itch app
and this, in my web browser.
Thank you for your anwser !