Update app.py

app.py

@@ -64,7 +64,7 @@ bnb_config = BitsAndBytesConfig(
 model = AutoModelForCausalLM.from_pretrained(
    "mistralai/Mistral-7B-Instruct-v0.1",quantization_config=bnb_config,
 )
-new_db = FAISS.load_local("faiss_index", embeddings)
+new_db = FAISS.load_local("faiss_index", HuggingFaceEmbeddings(model_name='sentence-transformers/all-MiniLM-L12-v2'),allow_dangerous_deserialization=True)
 # Connect query to FAISS index using a retriever
 retriever = new_db.as_retriever(
     search_type="mmr",