Update app.py

app.py

@@ -32,7 +32,7 @@ class BasicAgent:
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
 
-        answer = agent.run(
+        answer = self.agent.run(
             "You must answer the question exactly, with a single word. For example: '4' or 'Paris'. The question is: "
             + question
         )