Hello,
Try to filter by Elementor https://prnt.sc/whjkwf Check if you get the Niche Market 2 version after that. If not then provide us with the WP Dashboard access, we’ll check.
We are theme developers, we don’t have deal with the site migration. We can help you only with theme installation and theme options. If you need help with theme migration you can submit the request to the WPKraken team, maybe they will be able to help you.
Regards