Without personally knowing the tutorial myself i cannot comment. But what is the desired result and what actually did u get?
Well at this point, The character randomly roams until it needs energy, at that point it will then start searching for food. It worked for me before this last video. But in this video they added the search for food function based on the perception system (sight). My character now just roams around until it dies and never searches or picks up the food item.
They need to edit and update these videos.