Sorry to hear of the problem you are having.
I visited your shared site but didn’t see any update button on it.
Do you mean the update button of page displayed in the admin area of site?
If yes then would you mind if i log in to your site and do some troubleshooting? If this is ok then could you please share me your site log in details privately by adding them in the box having text “Click here to share private content. Only you and forum moderators will be able see it.”?
I see you are using Twenty Seventeen theme on your site and not Jevelin theme.