Hi Melinda,
You will likely need to reset the single product template within the editor.
First, make sure you’re using the latest version of the theme. Then, navigate to Appearance > Editor > Templates > Product Single. At the top of the page, select the template file name dropdown, and choose the option to either clear or reset the changes.
You can learn more here, https://wordpress.com/support/site-editor/#reset-changes
This should update the single product template to display as it does within the latest version of the theme.
I hope this helps.
Thanks!