I am editing a wordpress website. My client had a team working on editing it and they simply used the Wordpress editor to make changes. When I log in to cPanel, I see a 'coming soon' page in the index.html file. But the changes that the design team made cannot be located in any file. Also, when I access the website with a http, it shows the website (even when it's not supposed to be launched) and when I access the website with a https, it shows the welcome page. I don't know how two different pages are displayed by just changing the transfer protocol. How do I edit the theme?