Update app.py

app.py

@@ -28,7 +28,7 @@ def load_vectorstore(model):
         emb = HuggingFaceInstructEmbeddings(model_name=model,
                                                query_instruction='Represent the Financial question for retrieving supporting paragraphs: ',
                                                embed_instruction='Represent the Financial paragraph for retrieval: ')
-        return FAISS.load_local('vanguard-embeddings-inst', emb)
+        return FAISS.load_local('vanguard_embeddings_inst', emb)
 
 #default embeddings
 vectorstore = load_vectorstore(model_options['all-mpnet-base-v2'])