What problem is "Slicing time exceeds the limit" trying to solve?

[xsynatic]

Why can't i post a 3D print that takes 24 hours to complete?

Hi, I usually share some of my color lithophane prints. I print using a 0.2mm nozzle and with 8 colors/filaments or more in 200mm*150mm. Some prints take more than 24 hours. Why does MakerWorld reject them? [Capture d'écran 2023-12-01 224726] [Plate 1]: Slicing time of a certain plate exceeds the limit. Please simplify the model or use a larger slicing layer height. https://makerworld.com/fr/u/3311866201