4. Privacy Settings

• Solution: Privacy settings may be blocking the camera.
  • On Windows:

1. Go to "Settings" > "Privacy" > "Camera."
2. Ensure "Allow apps to access your camera" is turned on.
3. Scroll down and check that the specific app you're using is also enabled.

• On macOS:

1. Go to "System Preferences" > "Security & Privacy."
2. Check that the app has camera access under the "Camera" tab.

5. Hardware Problem

• Solution: There could be a physical issue with your camera.
  • Check for any physical covers or switches that might be blocking the camera.
  • If possible, try connecting an external camera to see if that works, which can help determine if the built-in camera is faulty.