fix

app.py

@@ -31,7 +31,7 @@ if files:
         db = FAISS.from_texts(chunks, embeddings)
         memory = ConversationBufferMemory(memory_key='chat_history', return_messages=True)
         chain = RetrievalQA.from_llm(
-            llm=AutoModelForCausalLM.from_pretrained("red1xe/falcon-7b-codeGPT-3K"),
+            llm=AutoModelForCausalLM.from_pretrained("red1xe/Llama-2-7B-codeGPT"),
             memory=memory,
             retriever=db.as_retriever(search_kwargs={"k": 3}),
         )