Villager breeder problem

https://preview.redd.it/p8jxzb84sane1.png?width=1920&format=png&auto=webp&s=54794f3454cd3679ee1d6625062653b415887f61

I build this villager breeder, why they don't breed? It's like 1 day in game and 0 new villager spawned. Minecraft 1.21.4