Venom Gaming

Ok, I followed those instructions but now when I go to the subdomain I see this message instead of an admin log in link :

Index of /
Name Last modified Size Description
backup-1554113566-wp..> 2018-10-23 05:04 –
backup-1554113566-wp..> 2019-04-01 04:10 3.5K
backup-1554113566-wp..> 2019-01-09 11:32 –
cgi-bin/ 2019-03-26 07:57 –
wp-content/ 2019-04-01 04:16 –
Apache Server at blog.venomuk.com Port 80

Did I do something incorrectly?

Hi, whereabouts in the file do I put this? I don’t really have any coding knowledge so this is a bit out of my depth!