Help with an extension

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How do I…

So I have made an OS through GDevelop. I use software update support, including two versions. I want to make the apps into that OS to be updated once, and just being imported as an extension for both. I have made an attempt, but buttons in the 2D object I generated through the extension do not work.

What is the expected result

The browser (the app I want to be made through extension system) should have working buttons and navigation bar.

What is the actual result

Buttons interactive, but not working (hovering is shown, when it is clicked does nothing)

Related screenshots

scr1

And screenshots to help showing us the issue.

(app shop here is apodimsoft_bookmark)