Apple iPhone 16 Shows Green Screen When I Open WhatsApp Camera

On my Apple iPhone 16, every time I try to take a photo on WhatsApp, a green screen appears, and WhatsApp displays a message saying it couldn’t start the camera and asks me to restart the app. Even when I open the regular camera, it takes 2–3 seconds to launch, and I often have to close and reopen it. This issue disrupts my communication and wastes a lot of time during urgent moments. I’ve also made sure my phone and WhatsApp are updated to the latest versions, but the problem still persists. Is there a solution to this issue?