how to update lite 2.8
Linux lite 2.8 will not update software or programs
Answer to the question
You'll usually get a more comprehensive answer from the Linux Lite forum. You can get to the forum by going to Menu and typing in the word "support". A web browser will open taking you to the forum home page.
Your updates issue may be related to the Google Chrome 32bit issue. If so, and if Google hasn't corrected that issue yet, the fix for it is here: https://www.linuxliteos.com/forums/installing-software/fix-for-google-chrome-on-linux-lite/