Blackview A60 Flashlight not working / Flashlight ICON not lighting up

The flashlight icon doesn't light up, and the flashlight doesn't work. Everything was working just fine the last time I used it the other day, then tonight I go to use the flashlight and nothing; the lettering of the icon doesn't light up, & the flashlight doesn't turn on. That is as straight forward as I can get.  Any ideas on why this would be.Thanks