Broken space (itch) (Angrybirds209)

something is not right out here...   (Sound warning!!!)

I follow the tutorial of making "space shooter" game in GDevelop5.After I finish making this game I called it "Astro Fighter". But after I publish this game online I found that my game have change into "Broken space" and when I play it everything has been change by "the Player"? I can't fix it ! it won't let me fix it.

You! who found this game please play and beat "the Player" for me, I don't know will it be fixed after you beat it but thank for trying.