If you’re seeing this alert message in your device, which is not going away and sticking on screen then here’s the solution.
It won’t work even if you will try to turn off the device. So, all you need to do is,
* Hold on the home screen button with “turn off” switch for around 10 seconds till Apple logo appears and then it will work okay ! (what we do to take a screenshot for ten seconds)
* Note : Don’t worry, this reset won’t erase any of your data.