Hello, my name is Rusty. The camera is usually a hardware error, so deleting the app won't help. The next step is to reset the tablet, which will clear up any digital routing errors. If there is a fix without sending it in, this will do the trick. If not, we'll need to send it in for repair.
1) Power down your tablet.
2) Tap the power-on button and volume down button at the same time
3) Tap and hold the power-on and volume down buttons until you see the android alien icon
4) tap the power-on and volume up again at the same time until you see the System recovery menu. Android System recovery menu Volume up/down to move highlight; power button to select. Select factory reset, and tell me if it does the trick. This will erase everything on your tablet, so be sure to back up your important content first.