GAME KEEPS CRASHING

My game keeps crashing, when I put my armor in a chest the game crashed and then I logged back into the world my ENCHANTED NETHERITE ARMOR was gone and no I did not lose it in a chest it is just gone it was the only thing in the chest. And this is the third time this has happened and I don’t want to have to suffer getting the diamonds netherite and enchantments for the armor so just fix it already.