If the problem continues to present itself you will need to perform a factory reset to clear out everything. The instructions to do this are listed below:
1. Hold Home Button and press power (continue to hold until you see the triangle with an asterisk like in step 2)
2. Screen will show a Android with a triangle with asterisk
3. Let Go of Home Button and Power
4. Press Search Button (Far Right Button)
5. A blue menu will show at top of page, scroll to Format Device
6. Select Yes to verify
7. Allow format to complete (Information at bottom of page will go through a few steps)
8. Once Format is complete Blue Menu will show at top again, select Reboot
9. Sometimes phone hangs after reboot and will take a while but if no response after 5 - 10 minutes, pull the battery and reinsert. (Device usually starts fine after this)
The problem can be due to a 3rd Party application you have on your device. A factory reset is suggested to remove applications.
