Update app.py

app.py

@@ -28,7 +28,9 @@ class BasicAgent:
         try:
             response = response.content
             matches = re.findall(r"Final Answer:\s*(.*)", response)
-            return matches[-1].strip() if matches else response.strip()
+            if matches:    
+                return matches[-1].strip()
+            return response.strip()
         except:
             return "Sorry, I can't answer to this question."