My phone camera is not working what can I do?

[AC Question]

My phone camera is says my car camera is being used by another application and I reseted my phone now camera icon is gone so what can I do or where can I reinstall it?

 

[the tall guy]

What device do you have? are you able to download a 3rd party camera app from the play store? are you sure the app has disappeared and it's not just the app shortcut on the homescreen?