There are a number of reasons why your phone's camera may not be working. Here are some common issues that may be causing the problem:
The camera app may be frozen or crashed: If the camera app is not responding or is frozen, try force closing it and opening it again. To do this, go to your phone's app switcher and swipe up or to the side to close the camera app. Then, reopen it.
Insufficient storage: If your phone's storage is full, your camera app may not be able to save any new photos. Try freeing up some space by deleting unnecessary files, such as old photos or apps that you no longer use.
Dirty lens: If there's dirt or smudges on the camera lens, it may affect the quality of your photos or prevent the camera from working altogether. Try cleaning the lens with a soft, lint-free cloth.
Software updates: Make sure your phone's operating system is up to date. Sometimes, a software update can fix bugs or issues that may be affecting your camera.
Hardware issues: If none of the above solutions work, there may be a hardware issue with your phone's camera. In this case, you may need to take your phone to a professional for repair or replacement.
If you've tried all of the above and your camera still isn't working, you may want to contact your phone manufacturer's support team for additional assistance