Switching from Gutenere Free Blog to Gutener Pro

hello folks,
I have been using the free child theme Blog Gutener (https://keonthemes.com/downloads/blog-gutener/) on my site https://www.remotati.online. I wanted to get more options and build a child theme so I bought Gutener Pro theme.

When I activate Gutener Pro, all my customizations are gone. Is there a simple way to migrate all customizations from the existing Blog Gutener to Gutener Pro?

Thanks
Stefano