From what I can see you made a 2d platformer browser game. Unfortunately .rar is not supported by itch.io for browser games! You need to put all files (index.html, javascripts and resources) into a .zip package.
On top of that there appears to be an error in the "mainscene.js" when you try to destroy the "this.book" object on line 45. Sadly I am a novice in java and can't help you more.