update

inference.py

@@ -9,7 +9,7 @@ os.makedirs(cache_dir, exist_ok=True)
 def load_tokenizer_model():
     folder_url = "https://drive.google.com/drive/folders/1DDJ9t-HfMrf6OLYim5bVrP20QgyOZahc?usp=drive_link"
     local_folder="ChatbotCheckpoint"
-    if not os.path.exists(local_folder):
+    if not os.path.exists(local_folder) or not os.listdir(local_folder):
         print("Downloading model and tokenizer...")
         gdown.download_folder(folder_url, output=local_folder, quiet=False)
     else: