App update not working

Good afternoon, I have implemented in my app the function that checks if there are new updates on the play store when the app is started. but it does not work. how can I do?

As soon as we can guess what you are doing, we will help you.
This may take time and we may never guess.

I think I explained what I’m doing well…
I inserted the function in my app to notify new updates on the play store, but it doesn’t work, when I publish new updates the app doesn’t notify me.

What about providing a screenshot of your relevant blocks instead of repeating what you already said?

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