So, do you want to disable breadcrumbs or not? Or do you want to change the page title only? You can change the page title in Pages > edit shop page and change the title.
If you want to disable breadcrumbs and show the custom heading only then disable breadcrumbs in page settings and edit shop page content using WPBakery page builder and add the Heading element that you need to page content.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.