If you're not able to take a photo within the app because your camera screen is blank or black, it's most likely because the camera permissions are not enabled. To allow the FastField app access to your device's camera:
- Go to your device's Settings menu.
- Scroll down to find and select the FastField app.
- Use the toggle to enable your camera for the FastField app.
- Relaunch the FastField app and try taking the photo again.
- Do you have a camera on your device?
- Do you have a cover or protector that is covering your camera?