add error tracking function

app.py

@@ -63,7 +63,8 @@ index = pinecone.Index(index_name)
 llm = chat
 agent = initialize_agent(tools, llm, 
                          agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION,
-                         verbose = True)
+                         verbose = True,
+                         handle_parsing_errors = True)
 
 global vectordb
 vectordb = Chroma(persist_directory='db', embedding_function=embeddings)
@@ -94,10 +95,15 @@ def chathmi(message, history):
     # yield history
 
 def chathmi2(message, history):
-    response = agent.run(message)
-    time.sleep(0.3)
-    print(history)
-    yield response
+    try:
+        output = agent.run(message)
+        time.sleep(0.3)
+        print("History: ", history)
+        response = output
+        yield response
+    except Exception as e:
+        print("error:", e)
+
     # yield history
 # chatbot = gr.Chatbot().style(color_map =("blue", "pink"))
 # chatbot = gr.Chatbot(color_map =("blue", "pink"))