The main problem I'm having is: in the Dashboard when I'm creating a new page - usually there is a choice for which template to use in the Page Attributes. This is not appearing in my child theme installation of OnePress.
I'm also getting an error in the Dashboard that the parent theme is broken or missing and please install it.
Problem 2: When I deleted the broken parent theme and re-uploaded it, on the one hand - the template choice became available. But, it messed up a lot of the work I had done in the Child Theme/ through the Dashboard.
Question: How can I get a complete/not broken parent theme up without breaking what I've already customized in the child theme?