Ohh, that's odd. Does it happen every time? If you can, I'd appreciate if you'd email over the "Player-prev" file located in "C:\Users\[YourName]\AppData\LocalLow\LJ LephemStar\Scratchin' Melodii - SAGE 2021 Demo" to Scratchin-Melodii-game@outlook.com
That file has an error log I can look at to (hopefully) see what the problem is and fix it in future builds, sorry it's happening to you!