Error Message Editing Home Page -Front page

Hello

When I try to adjust type of contaniner in home page I get the following error message in red at the top of the page:

Updating failed. Could not update the meta value of neve_meta_sidebar in database.

I have seen that a solution to this suggested in another post is to make a new copy of the page…however I don’t get the ‘duplicat’ option coming up when I hover over the home page.

Any ideas?
Thanks