Half Chest Items Disappeared

I was actually streaming and I notice all of my chest items in my world are half gone like ALL of my CHESTS in my World are gone, like half of my Items in my chest are gone, I have 3 chests that are full like there's no space left, and Half of them are gone, I also have a link on my stream, its just a short stream (25 mins).
link:https://www.facebook.com/HaridoOfficial/videos/3654507247942245/