Remove the index from the folder /domains/yourdomainname.uk/public_html. Of course, you must replace "yourdomainname.uk" with your own domain name. Then, visit your domain name again. Should you still see the default page, please press CTRL + F5 to refresh the page.
Always make sure that the 1st page of your website is called index or index. If, after removing the index, you see the notification "Forbidden" this means that you don't have an index or index file.
Important: The index or index is case sensitive! So please make sure that your file is not called Index or Index, but simply index or index.