The life bar of the game does not rise, even if I eat, and this happens in a specific world and in its copies

I entered my Minecraft world and realized that if I took damage, my character's health bar would not increase, nor if I filled the hunger bar. I tried to see if this happened in my other worlds, and I realized that it only happened in my world and in some of his copies, and it didn't happen in my other worlds.

Expected result:

A life bar grow normally