Hello Rose
At the moment, the customizer is not working on that site. I reported this in another support ticket and it is being worked on by your development team.
I am not talking about the Blog page layout, but the single blog post page where some of the meta is missing, specifically the date. It appears by default without XStore. XStore’s blog layout should not be removing this piece of information for readers, since it’s the most important part of post meta data. It shows the reader is a post is recent or out of date. Changing the Blog page layout should not remove it for single blog posts. XStore has not made this a choice for us.
Robert