Siri can't run my custom app shortcuts

Hi, I'm working on an app built entirely with Swift SwiftUI and the new lifecycle. I use Siri Intents and Siri Shortcuts. I have manage to create my own Shortcuts and use them with the Shortcuts app. I can run them manually and the work perfectly. But when I ask Siri to run the Shortcut it doesn't work and Siri just freezes and then cancels the task.

Am I missing something out or am I actually doing something totally wrong way? Please let me know.

I'm relatively new with Siri Intents so I have followed this tutorial: toolboxpro.app/blog/adding-shortcuts-to-an-app-1