The subscription dialogue box pops up after clicking on the subscribe button. If the user clicks away from the subscription dialogue box, the subscription dialogue box will disappear and show the button to proceed to the subscribed content without subscribing to the content. Is there a way to fix that?
If you opened the link from the first post, in the description of the extension you can read:
Note: Starting on August 2, 2022, all new apps must use Billing Library version 4 or newer. By November 1, 2022, all updates to existing apps must use Billing Library version 4 or newer.
This billing extension will not be updated anymore. You have the following options to update your app:
Use an App Inventor distribution, which offers a billing component like Kodular or Niotron