Update app.py

app.py

@@ -37,7 +37,7 @@ def chat(message, history, openai_api_key):
     
     global assistant, thread
 
-    if get_openai_client() == None:
+    if get_openai_client() == None or len(history) == 0:
         set_openai_client(openai_api_key)
     
     # On first run, create assistant and update assistant_id,