Sorry you’re acquiring challenges with accessing the admin region. Take into account that your admin Listing should have been renamed to what ever you set it – for security good reasons. This happens in the installation of PrestaShop. If you’re attempting to make use of a generic URL for example https://addons.prestashop.com/en/seo-natural-search-engine-optimization/31857-automatic-google-rich-snippets-json-ld-open-graph-seo.html