Update app.py

app.py

@@ -188,10 +188,9 @@ class RAGInterface:
         )
 
         # Wrap the interface with custom HTML
-        gr.Blocks(css=custom_css) as wrapped_demo:
+        return gr.Blocks() as wrapped_demo:
             gr.HTML(header_html)
             demo.render()
-            return wrapped_demo
 
 def main():
     interface = RAGInterface()