Camera won't work.

[boult5]

Camera won't come on after trying to take a video  message that pops up - can only perform one  instruction at once even though only one instruction  chosen

[Pugs1957]

Hi, it sounds like the message app is still running so is hogging the camera. If you shut down the app the camera should work.

[BandOfBrothers]

Try going into Settings,  camera , Storage and Clear it's cache if @Pugs1957 excellent advice does not resolve the current problem @boult5