The layout does not work as expected

[ViGeng]

Hello, I like your project!
However, it does not work as expected when I try to generate a pdf or print it.

date: 2024-12-08, Sun
layout: wall calendar
paper size/ratio: A3 or A4
browser: Version 131.0.6778.109 (Official Build) (arm64) on MacOS 13

Thanks in advance.