Issue
This error message may appear in the following scenarios:
When editing an archive page without creating an archive template / not editing through the archive template.
When using an incompatible theme or plugin.
When the website URL and home page URL are not the same.
Solution when error appears only on a specific page
Error appears on Archive pages
When creating or editing a Blog archive page or a Homepage that shows the latest posts, make sure to first create an Archive Template using the Theme Builder. For details, see Create Or Modify Archive Templates » Elementor. Then, when you want to edit the page again, do the following:
Go to Templates > Theme Builder.