Update app.py

app.py

@@ -18,7 +18,7 @@ def main():
     friends = st.text_input("Enter the names of some of their friends:")
 
     if st.button("Generate Story"):
-        if name and interests and friends:
+        if name and interests and friends and age:
             story = generate_bedtime_story(name, interests, age, friends.split(","))
             st.write(story)
         else: