Update app.py

app.py

@@ -331,11 +331,11 @@ with gr.Blocks() as app:
             gr.HTML(create_modal_window())
             gr.HTML(modal_js())
 
-        backend_interface = gr.Interface(
-            fn=process_checkout,
-            inputs=["text", "text"],  # Expect cart summary and total bill as inputs
-            outputs="text"           # Return a text response
-        )
+    backend_interface = gr.Interface(
+        fn=process_checkout,
+        inputs=["text", "text"],  # Expect cart summary and total bill as inputs
+        outputs="text"           # Return a text response
+    )
 
 
     login_button.click(