Whenever I open up FaceTime/Photo Booth/Discord etc., they come up with an error that my (internal) webcam cannot detected. The way I fix this is to reset the SMC , which does work but only for a few minutes, and then we are back to square one.
I have tried `sudo killall VDCAssistant` and `sudo killall VDCAssistant` to no avail.
I am running macOS Mojave, 10.14.3 on a mid-2012 MacBook Air[![enter image description here][1]][1]

Does anyone have any idea on how to fix this?


  [1]: https://i.sstatic.net/8OK3o.png