Answer:
Mr. Kraler is sick with ulcer disease that prevents him from coming to the attic.
Step-by-step explanation:
Mr. Kraler is sick with a ulcer disease that prevents him from coming to the attic because due to this disease he is unable to move from his bed and stay in the hospital. This is due to the stress from the war and caused him the ulcer disease. With this disease he is unable to move due to high pain. He was worried because food rations left very low in amount and everyone is starving.