Upfront: There has been an error saving your changes

Ughhh! Just made a ton of changes to a new site and lost them ALL! It appears that when I have been saving, I have been getting a message “there has been an error saving your changes” it appeared in Upfront like the changes were being made so I assumed it was an issue. Apparently not! After a refresh the site is back to its original form and all my changes are lost. So frustrating.

I have tried everything I know to get the site to save my changes and it is refusing. I will open support access. Please advise.