Update app.py

app.py

@@ -158,12 +158,11 @@ def conversation(qa_chain, message, history):
 #qa_chain = 
 
 
-
 def demo():
     with gr.Blocks(theme='base') as demo:
-        #vector_db = gr.State()
+        vector_db = gr.State()
         qa_chain = gr.State()
-        #collection_name = gr.State()   
+        collection_name = gr.State()   
         
         vector_db, collection_name = initialize_database(list_file_obj)
         chatbot = gr.Chatbot(height=300)