Problem opening link on Android device

The next issue is :- Why, under (Android) close test, my app cannot open from given link on Close Test page. It show Item not found in serveral mobile phone (either Chinese brand or non-Chinese brand,including Samsung)

The title of your post should be a short summary rather than the entire question.

I’ve changed it for you.

Also, you need to provide more details such as a project link, screenshots, and steps that cause the problem to happen.

The problem has not yet been solved. I still experience the faulty message saying that the “Item not found”
(please see attached file). Please correct this again, or else advise me what I should do to solve this.

(attachments)

@ditptraining001 Have you added the email(s) of the testers to your Closed Testing track? You will not be able to simply distribute the link without adding in the specific emails associated with each Google account first.

Dear Math
The emails were sent successfully. The Links clicked on recipients’ email on Android mobile phones. I tried with 2-3 Android phones and experienced the same result, as the picture shows.