bug fixes

app.py

@@ -63,8 +63,9 @@ def respond(message, history):
 
     response = ""
 
-    responseStream = client.chat_completion(
-        model = "llama-3.1-8b-instant", messages, stream = True, max_tokens = 600, temperature = 0.4)
+    responseStream = client.chat_completions.create(
+        model = "llama-3.1-8b-instant", messages = messages, stream = True, max_tokens = 600, temperature = 0.4
+    )
     
     for segment in responseStream:
         token = segment.choices[0].delta.content