It may be a specific module or plugin triggering the error. I'd advise re-installing the Prestashop core files in the event you haven’t already. When I install prestashop utilizing Quickinstall (cpanel module) the admin panel url may be very Strange "admin-1380902282" You will require a login url. Link is presented https://addons.prestashop.com/pt/seo-referenciamento-natural/31857-rich-snippets-automaticos-json-ld-opengraph-seo.html