This error code could be related to the flash feature of the camera. I would suggest to reset the camera to the default factory settings. You can do this by going to the [Menu] and, then going to the [Main system Settings] and, pressing [initialize] to reset camera.
Also you can do a hard reset of the camera by taking out the battery and holding the power button for about 15 seconds. After that, you can return the battery to the camera and power it back on. If that does not work there could be a hardware issue and require a replacement of the motherboard.
For instruction for replacing the motherboard and troubleshoot refer to: [[Sony Cyber-shot DSC-W800 Troubleshooting|Troubleshooting Page]]