Control your devices with Siri

For a few days on my wife’s Iphone, when she tells Siri to “open the gate” this reply “Siri replies ‘it looks like you have not set up any home kit accessories’” how to solve?
the house is shared and used to work

Hi there, you shared your Home with your wife, right? Have your wife set up Siri commands on her phone? Your wife has to create Siri commands at her side so she can ask Siri to run the manual scene.

Here is a user guide to add manual scenes to Siri.