I successfully copied the site to the new directory, and it can now be accessed via myparentssite.com. But obviously I am directed to a subpage of myownsite.com/myparentssite as soon as I click on a link. So I thought it would be a good idea to run Velvet Blues to update the URLs – but unfortunately even entering myparentssite.com/wp-admin in the address bar will redirect me to myownsite.com/myparentssite/wp-login.php (or to be precise, myownsite.com/myparentssite/wp-login.php?redirect_to=http%3A%2F%2Fwww.myparentssite.com%2Fwp-admin%2F&reauth=1) where I have to log in again before being directed to the dashboard for the old site located in myownsite.com/myparentssite rather than the one in myownsite.com/myparentssite.com/, so if I was to run Velvet Blues from there, I would be updating the wrong installation.

What do I need to do to solve this problem?