Yes, see what’s wrong.
You have a sub-folder within the child theme folder /startuppro-child/ that contains all the php templates.
You need to simply drag them out of that folder so that everything appears alongside style.css, delete the sub-folder, delete out the currently live child theme and re-upload the new one.
You could zip it and install under Appearance > Themes, but a better way would be via FTP (if you’re not sure how to FTP into your site, please check with your host). The reason being is because that way you can make edits locally and then upload the changes to your live site so that you always have a backup and also because it’s much easier to edit files locally using a more advanced text editor than editing through the default WordPress file editor.