calculator in libre office and it keeps crashing.

I am using calculator in libre office and it keeps crashing. Tried to download Libre office but it fails to start/ run. I have a Ubuntu Dell Laptop which runs Ubuntu 16.4.

Any information about LibreOffice version, repository used to download (Ubuntu’s own, download. libreoffice.org or both tried), really using such old Ubuntu release (16.[0]4), any information about error messages, when calling from command line? If not, no help possible.