map to string messages in the list

app.py

@@ -232,8 +232,8 @@ def run_and_submit_all( profile: gr.OAuthProfile | None):
 
 def check_agent(question: str):
     agent = BasicAgent()
-    final_answer, logs = agent(question)
-    return final_answer, "\n".join(logs)
+    final_answer, msgs = agent(question)
+    return final_answer, "\n".join([str(msg) for msg in msgs])
 
 
 # --- Build Gradio Interface using Blocks ---