The glitch was first discovered in Apple Family Sharing. This program allows users and up to 5 other family members to make purchases on the App Store, subscribe to Apple Music, and use iCloud storage. However, users reported being redirected to the app's purchase page immediately after receiving the error message 'This app is no longer shared with you.'
Apple has resolved the issue of some iOS apps failing to launch
Currently, iOS 13.5 is the latest operating system for iPhone, iPad, and iPod Touch:
Users quickly found that they could remedy this issue by simply reinstalling the problematic apps. Last Sunday, some people reported a slew of updates waiting to be processed on their iOS devices, marking a successful effort by Apple to fix the bug.
According to reports, the number of app updates has exceeded 100 in some cases. If Apple doesn't mandate device updates, many users may wrongly attribute the glitches to app developers, generating hundreds of unjust feedback. Apple hasn't provided additional details on what exactly caused the issue, but they assure that the bug has been fixed.
https://Mytour.vn/apple-has-fixed-a-bug-causing-some-ios-apps-to-fail-to-launch-26929n.aspx
Additionally, if you're using iOS 13, check out Common Fixes for iOS 13 Issues here to prevent issues in advance.
