This is a common problem that you may have to face.

How to Fix Apps not downloading from the play store on Samsung Galaxy A21s? Sometimes this problem occurs due to the new update of the Play Store. Be sure to check your email notifications or your Ads Manager dashboard to see your Ad’s current review status and other details such as the rejection reason. … If their name appears, but you do not receive any notifications or messages from the user, they might have removed you from their friends list but not blocked by them. Could we have your permission to use some third party services? These services enable us to improve functionality and performance by tracking usage and optimizing the service that this site offers.

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