Hello' What you were doing when you receive this error message? please reply below.
If you were making a phone call: Go to Settings> Apps > Slide to all apps > Open Dialer > Touch clear data and clear cache and then reboot your phone by pressing and hold the power button until the tablet/phone reboots.
If you were making a phone call: Go to Settings> Apps > Slide to all apps > Open Dialer > Touch clear data and clear cache and then reboot your phone by pressing and hold the power button until the tablet/phone reboots.