update

app.py

@@ -223,10 +223,10 @@ def main1(config_path):
     logging.basicConfig(level=logging.INFO, 
                         format='%(asctime)s - %(name)s - %(levelname)s - %(message)s')
     logger = logging.getLogger(__name__)
-    global config = None 
-    global retriever=None
-    global tokenizer=None
-    global language_model= None
+    global config 
+    global retriever
+    global tokenizer
+    global language_model
     try:
         # Log the start of the process
         logger.info("Starting the process with config file: %s", config_path)