Getter not working as expected

This should be rather simple. I have an actor called item master, I created a GetImage function that returns the value of the image variable. I made a few children from that actor and set them in the world. I pick up an item via ray casting and store it in an array. Later, in my GUI inventory I try to grab the image using FirstPersonCharacter>inventory>get element0(where the item is) and GetImage so I can set the image icon in the inventory. An error happens that says access none. Am I missing some fundamental blueprint thing? please send help.