Hello,
1) You provided access to your hosting panel not to your site. I need WP dashboard access to your site http://www.staging3.diymydesign.com/
2) We can’t log in even to that hosting account because of the double auth https://gyazo.com/aafe32a8ea9b678de5a172335526d4a3
So, provide us access to wp-admin of http://www.staging3.diymydesign.com/
Regards