Good job completing the jam and your first game!
Unfortunately your game has been quarantined by itch.io, so we will not be able to playtest it at this time. Please contact itch.io support so they can assist you with this issue! It is probably due to the fact that you have uploaded a .rar file instead of a compressed zip, so if you'd like, feel free to reupload your project with a zip file to see if that fixes the issue.