Hi, I'm Randy. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
I am sorry this happened. This could be a glitch in the software and the iPhone needs to reboot, lets try and force a reboot > Hold the home button and the power button down for about 60 seconds or until the Apple logo appears on the screen, then release both buttons. If it does not power on release the buttons after 60 seconds and then hold the power/sleep button only for 60 seconds then try holding both buttons again.
Please reply and let me know if you need any other assistance,
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