Update app.py

app.py

@@ -1,6 +1,7 @@
 import os
 import time
 import gc
+import traceback
 from queue import Queue
 from threading import Thread, Event
 from itertools import islice
@@ -160,6 +161,8 @@ def chat_response(user_msg, chat_history, system_prompt,
     else:
         debug = 'Web search disabled.'
 
+
+    enriched = system_prompt
     try:
         # wait up to 1s for snippets, then replace debug with them
         if enable_search:
@@ -172,8 +175,6 @@ def chat_response(user_msg, chat_history, system_prompt,
             else:
                 debug = "*No web search results found.*"
                 enriched = system_prompt
-        else:
-            enriched = system_prompt
 
         pipe = load_pipeline(model_name)
         prompt = format_conversation(history, enriched, pipe["tokenizer"])
@@ -259,7 +260,7 @@ def chat_response(user_msg, chat_history, system_prompt,
         gen_thread.join()
         yield history, debug + prompt_debug
     except Exception as e:
-        history.append({'role': 'assistant', 'content': f"Error: {e}"})
+        history.append({'role': 'assistant', 'content': f"Error: {traceback.format_exc()}"})
         yield history, debug
     finally:
         gc.collect()