When you meet a new "Can" character, they show you their problem in a thought bubble. You can "snap" a sketch of that bubble into your diary.
If you are asking about "Boxville.rar" because you are having or it's stuck during unpacking: Boxville.rar
The world of Boxville is made entirely of corrugated cardboard and old tin cans. When you meet a new "Can" character, they
Completing these repairs could unlock "Memory Sketches"—short, hand-drawn animated clips that tell the backstory of why the city was built from boxes. Is this for the game or a technical issue? Since the game focuses on taking away stress
You can view a "Community Cardboard" where other players have uploaded their own hand-drawn doodles to hint at puzzle solutions.
Since the game focuses on taking away stress and anxiety, a low-pressure hint system is key.