My Macbook pro having this problem recently. Whenever I try to launch the camera, I get there is no connected camera error on the screen and the app closes abruptly. I have followed many instructions such as this https://www.thetechminute.com/fix-macbooks-no-connected-camera-problem/ that involves restarting the Macbook and also running the commands through the terminal, but nothing has worked sofar. I would appreciate any help from the community here.