my camera not working

Hi,

Following document could help your issue.

If your built-in camera isn’t working on your Mac - Apple Support

If it doesn't help, try to run Apple Diagnostics if it reports built-in camera related error(NDC001, NDC003 to NDC-006)

Use Apple Diagnostics to test your Mac - Apple Support

If it doesn't help, contact Apple Support or make Genius Bar reservation if your local retail Apple Store is open or find opened local Apple Authorized Service Provider to be examined your MacBook Pro.

Contact - Official Apple Support

https://www.apple.com/retail/geniusbar/

Apple - Find Locations - Location Selector

If the camera indicator light next to the camera flashes green on your Mac notebook, contact Apple. 