[Resolved]  Vivo Mobile India — screenshot problem

Its been 1 yr since i bought this vivo y51l phone and now its not saving my screenshots and whenever i try to take a picture from the camera then it is not shown in sd card and moreover when i try to delete some photos from the previously saved screenshots it shows 'error in deletion'. Why is it so.. Pls help. Show your concern in this matter asap. Thanking you!