There are several factors that this problem occurred when the device suffered water damaged or accidentally dropped or soaked into water.
If encountered this problem you may first check the flash firmware or restored it, then if the problem still exists
you may then proceed to hardware troubleshooting.
This solution below shows the camera IC module which holds the camera to work. If this chip become faulty it will not recognize the camera operation and result to show camera feature not supported on the display.
Nokia E63 Camera Feature Not Supported Solution -Hardware Repair
The solution above showed the location of the camera module chip of which where it is being mounted on Nokia E63 PCB board. You may first rework this chip or then replace if the camera feature not supported problem continue exist.