If your Android apps are blocked, that’s why
If you have problems with certain Android applications, for example Gmail, find out that the problem is confirmed by Google and has a solution.
Many users around the world have complained that applications such as Gmail or Chrome close immediately when accessed. The culprit is an update to the Android WebView System, which is the basis of several applications.
Google has recognized the problem and all you have to do is enter Google Play and update all applications. WebView will also update automatically.
If for various reasons you do not find an update to WebView, try to manually uninstall the current version so that the phone runs the version included in the Android firmware.