Hello,
Where did you get the purchase code that was used to activate the theme on your site? It is not the same that you provided for the account on our site.
You are using very old versions of the theme and Core plugin. Don’t you plan to update them? We would recommend to do update, because old versions may be reason of compatibility problems with new WP and plugins, but do NOT update the live site right now. Create staging site (full copy of the existing site) and update theme to the latest version there and if everything is ok then update production site.
https://xstore.helpscoutdocs.com/article/63-theme-update
https://xstore.helpscoutdocs.com/article/37-plugins-update
We can help with the update. In this case, provide us with temporary wp-admin and FTP access, to the staging site.
Regards