what causes the app to close in android?. I have sony xperia z 3 and i have an app that closes and get the message"unfortunately ...... has closed"
That is a generic OS error message indicating that an app has encountered a problem and force-closed (shut down) as a precaution.
The first thing to try is going to
Settings/Apps, locate the problem app. and use the
Clear Cache option. Reboot the device and see if that solves the problem.
If not, repeat the process but this time
Clear Data too. This will require you to re-sign/re-login (if necessary) and will remove any app-specific user data.
Failing that, your next option is to uninstall the problem app. reboot the device, then reinstall.
If the issue persists then the best advice is to perform a "repair installation" using the latest Sony firmware via PC Companion.
You are talking about nothing when you refuse to identify the program that fails. If this is illegal software, take your problem elsewhere.
Wow, way to make friends and influence people...
How about you try cutting new members a bit of slack and offer advice instead of insulting them?