Flawed demo and buggy interactions - it needs a fix or an update for sure.
Starting with the premise - sort of too similar to "The Boba Teashop" game, yet instead of Bobba Tea you sell ice-cream. The game starts fine, but the lack of direction instantly breaks immersion. I watched 2 gameplays made for this and no wonder one of them wasn't even able to finish the game, while the next one took way longer to get what was going on. Demo is meant to showcase a simple premise, simple mechanics and straight direction. Not to mention, the items falling through the map and the "Ice-Cream Making" machine doing absolutely nothing (and yes, I've seen the torn paper like instructions, which didn't help much).
Overall, after 20 minutes, I felt really disappointed by this. Hope it gets fixed or updated. Good luck.