Dear @anli75,
I hope you are doing well.
Could you kindly check if you have had the opportunity to clear the Elementor cache, as we previously suggested in the screenshot? Additionally, the issue you are experiencing may be similar to the one discussed in the following topic: https://toolset.com/forums/topic/the-frontend-displays-blank-content-after-editing-a-page-with-elementor/. It appears that the header content becomes empty due to a conflict with a plugin installed on your website or some modifications made by one of your site managers in some areas.
May we ask you to verify whether this issue started occurring after installing a specific plugin? If so, you might try deactivating the plugin and testing the site again to see if the issue persists.
Furthermore, in your next response, please provide us with the WordPress admin access details, as we currently do not have them. This will allow us to investigate the issue more thoroughly if needed.
We appreciate your cooperation and look forward to your update.
Best regards,
Jack Richardson
8Theme Team