First, let’s attempt resolving this issue with your iOS device (iPod touch/iPad/iPhone) by trying a hard reset, then proceed from there if that does not resolve the problem:
Disconnect the iOS device from it's cord, if plugged in.
Press and hold your Sleep/Wake button (on the top) and Home button (on the front) together for around 10 seconds.
When the Apple logo appears, release both buttons.
The next thing you should see are the Apple logo followed by the home screen a few minutes later.
If the above does not work, plug it straight into a power outlet and try again.
If you continue to have questions on this topic, just reply back to this discussion prior to rating. I will be more than happy to work with you further. Hopefully, this info will answer your question and if so please don't forget to positively rate my service
Thanks and good luck,