update app

app.py

@@ -11,9 +11,9 @@ load_dotenv()
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s', stream=sys.stdout)
 
 # Authenticate with Hugging Face
-hf_token = os.environ.get("HUGGINGFACE_TOKEN")
+hf_token = os.environ.get("HUGGING_FACE_TOKEN")
 if not hf_token:
-    raise ValueError("HUGGINGFACE_TOKEN not found in environment variables")
+    raise ValueError("HUGGING_FACE_TOKEN not found in environment variables")
 login(token=hf_token)
 
 # Load the Llama-3.1-8B model and tokenizer