Hi, let me help you.
If you do not have a camera shutter or lens cover.
Please let me know the exact error message that you are getting.
Restart the laptop if it has been done. Perform a hard reset.
To begin, ensure you've saved any open documents or projects and closed all applications. Next, power off your laptop completely. If it's unresponsive and won't shut down normally, press and hold the power button until it turns off. Disconnect any external devices such as USB drives or printers. If your laptop has a removable battery, take it out. Otherwise, ensure it's unplugged from the power adapter. Now, press and hold the power button for about 15-30 seconds. This action discharges any residual power in the circuits and clears temporary memory. Reconnect the power source by reinserting the battery (if removed) and plugging in the power adapter. Finally, turn on your laptop as usual and then test the camera.