Update app.py

app.py

@@ -56,7 +56,7 @@ def create_qa_system():
             chain_type="stuff",
             retriever=db.as_retriever(search_kwargs={"k": 2}))
     except Exception as e:
-        raise gr.Error(f"Initialization failed: {str(e)}"))
+        raise gr.Error(f"Initialization failed: {str(e)}")
 
 # Initialize system
 try: