fix error content

app.py

@@ -31,7 +31,7 @@ hf_client = InferenceClient(api_key=HF_TOKEN)
 # Function to process message and get response
 async def get_ai_response(message_content):
     try:
-        messages = [{ "role": "system", content: "tu es \"orion\" une ia crée par ethan " },{"role": "user", "content": message_content}]
+        messages = [{"role": "user", "content": message_content}]
         response = ""
         stream = hf_client.chat.completions.create(
             model="Qwen/Qwen2.5-72B-Instruct",
@@ -42,11 +42,17 @@ async def get_ai_response(message_content):
             stream=True
         )
         for chunk in stream:
-            content = chunk.choices[0].delta.content
-            if content:
-                response += content
+            # Safely handle the chunk content
+            try:
+                delta_content = chunk.choices[0].delta.content
+                if delta_content is not None:  # Only append if content exists
+                    response += delta_content
+            except (AttributeError, IndexError) as e:
+                logging.warning(f"Skipping invalid chunk: {e}")
+                continue
         return response if response else "I couldn't generate a response."
     except Exception as e:
+        logging.error(f"Error in get_ai_response: {e}")
         return f"An error occurred: {str(e)}"
 
 @client.event