Update app.py

app.py

@@ -129,6 +129,7 @@ async def chat(request: ChatRequest):
             )
             
             #  ------------ Retrieve relevant text ------------
+            rephrase_response = rephrase_response.text
             docs, filtered_docs_and_scores = retrieve(rephrase_response, vectorstore, top_k=8)
             docs = "\n\n".join(docs)