Hello, I'm getting this error and can no longer get this page to work properly. It's no longer accepting my referenced CSS files residing in a CEWP as well.
When it started happening:
I made some changest to the page/deviated from the template and the yellow status bar appeared. So in-order to remove the status bar without CSS (because I want users to know if the page is checked out). I copied the home.aspx page, export/stored it locally, then deleted the home.aspx page in SharePoint and imported the home.aspx back into the library.
Now when I edit the page I get that error. Any help would be greatly appreciated. Thanks!