(I was working on hosting and suddenly there was pressure on site builder, and since then the website has looked like this… What is the solution that helps you?)
Deleting/archiving the Site.Pro website builder for your website doesn’t remove the published files from your website. You will need to remove those yourself. This includes the “coming soon” page that Site.Pro may publish when you first open the builder.
If you already removed the index.php file created by Site.Pro and you still see this page, you may also want to clear your browser cache.